If 2.34 grams of Al react and the percent yield of Cu is 59.6%. The mass of Cu produced is 4.92 g
The balance reaction will be
2Al+ 3CuSO₄ --> Al₂(SO₄)₃+ 3Cu
3 moles of copper sulfate and 2 moles of aluminum react to create 3 moles of copper and 1 mol of aluminum sulfate.
First, we calculate the reactant's moles.
Al is limiting because there is an overabundance of copper sulfate.
Moles Al = 2.34 g /26.98 g/mol = 0.0867 moles
2 moles of Al can generate 3 moles of Cu in a 2:3 ratio.
The result will be
moles 3Cu= 3/2 x 0.0867 = 0.13 moles
Moles are converted to mass as 0.13 mol x 63.5g /mol = 8.26g
That is the potential yield (reaction with 100% yield).
We are aware that (yield generated / theoretical yield) x 100 = yield in percent
We exchange:
(Produced Yield / 8.26g) 100 = 59.6 %
9.71g / (Yield generated) = 0.596
Yield produced = 0.596 X 8.26g = 4.92 g
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the process by which the atoms of one or more substances are rearranged to form different substances is called a
Answer:
Chemical reaction
Explanation:
This process is called a chemical reaction. A chemical reaction is where atoms are rearranged to create various compounds, so the atoms can either be formed or broken.
For example, in this equation for the formation of water:
2H2(g) + O2(g) → 2H2O(l)
Here hydrogen and oxygen both combine to form water. This new compound, water, that has formed is what makes it a chemical reaction.
In this equation for the decomposition of calcium carbonate:
CaCO3(s) → CaO(s)+ CO2(g)
Here, CaCO3 has been broken down into CaO and CO2, which takes place as a chemical reaction.
write formulas for the compounds that form from k and each of the following element: n, o, f.
Potassium (K) forms compounds KN, K₂O and KF with N, O and F element respectively.
Potassium nitride (KN) - Potassium (K) combines with nitrogen (N) to form potassium nitride (KN). The chemical formula for this compound is KN. Nitrides are compounds containing the nitrogen anion (N3-).
Potassium oxide (K2O) - Potassium (K) combines with oxygen (O) to form potassium oxide (K2O). The chemical formula for this compound is K2O. Oxides are compounds containing the oxygen anion (O2-).
Potassium fluoride (KF) - Potassium (K) combines with Fluorine (F) to form potassium fluoride (KF). The chemical formula for this compound is KF. Fluorides are compounds containing the Fluorine anion (F-).
Potassium is an alkali metal, and it forms ionic compounds with non-metals such as Nitrogen, Oxygen, Fluorine which are highly electronegative elements, these compounds are formed through the transfer of electrons from Potassium to Nitrogen, Oxygen, Fluorine which results in the formation of K+ and N3-,O2-,F- ions respectively.
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2 As (s) + 6 NaOH (aq) → 2 Na3AsO3 (s) + 3 H2 (g)
If 39.3g of As reacts with excess NaOH at STP, what volume of H2 will be produced in liters?
The volume of the hydrogen gas is 17.6 L.
What is the volume of the hydrogen gas that is produced?We know that the volume of the hydrogen that we can get using the stoichiometry of the reaction and that is what we are going to do here. We can see that from the question, we have;
Number of moles of the Arsenic = 39.3g /75 g/mol
= 0.524 moles
We have;
2 moles of arsenic produces 3 moles of hydrogen
0.524 moles of arsenic produces x moles of hydrogen
x = 0.524 moles * 3 moles/ 2 moles
= 0.786 moles
Mass of the oxygen = 0.786 moles * 22.4 L
= 17.6 L
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identify the major product of the following reaction.
The major byproducts of the chemical reaction between sodium sulphide and 1,4-dibromobutane are thiolune and sodium bromide.
What does "chemical reaction" mean?A chemical reaction is a process that changes one or more reactants into one or more products, which are different substances. Substances include, for instance, chemical components or elements.The five fundamental categories of chemical reactions are synthesis, oxidation, breakdown, single-replacement, double-replacement, and combustion.The conversion of one substance into another, the emergence of new compounds with distinct properties, and the development of new materials are all examples of chemical changes. When two substances interact to create a new substance, it happens (synthesis or either decomposes to form more substances).Chemical equations are written symbols that use chemical formulas to express chemical reactions. The products are displayed on the right, and the reactants are displayed on the left.The complete question:
"Identify the primary product of the following reaction: + Nas? + 2NaBr Br Br. c. Br co."
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How many atoms of barium are in
274.66 g of Ba?
Answer:
Avogadro's number, 6.022×1023 6.022 × 10 23 , gives us the amount of substances or particles contained in one mole. For example, there are 6.022×1023 6.022 × 10 23 atoms in one mole of Ba, the symbol for the element barium.
To find the number of atoms in 274.66 g of barium, you need to know the atomic weight of barium and convert the weight to moles. The atomic weight of barium is 137.327 g/mol. Using the formula:
mol = weight/atomic weight
we find that 274.66 g of barium is equivalent to 2.00 mol of barium. Since there are Avogadro's number of atoms per mole, the number of atoms of barium in 274.66 g is equal to 2.00 mol * 6.022 x 10^23 atoms/mol = 1.20 x 10^24 atoms.
A sample of sodium hydroxide (NaOH) has a mass of 160.0 g. The molar mass of NaOH is 40.00 g/mol. How many moles of NaOH does this sample contain
A sample of sodium hydroxide (NaOH) has a mass of 160.0 g and molar mass of 40g/mol so the moles will be 4 moles.
A mole is defined as the mass of the substance which consists of the equal quantity of basic units.The basic units can be molecules, atoms or formula units based on the substance.
The data from the question is as follows
Mass of NaOH = 160g
molar mass of NaOH =40 g /mol
The formula for the number of moles formula is expressed as
Number of Moles = [tex]\frac{Mass of substance }{ Mass of one mole}[/tex]
no. of moles = [tex]\frac{m}{MM}[/tex]
So by putting values in the given formula we will get the answer
no. of moles =[tex]\frac{160}{40}[/tex]
no.of moles = 4mol
So moles of NaOH does this sample contain is 4 mol
Your question is incomplete most probably your full question was
A sample of sodium hydroxide (NaOH) has a mass of 160.0 g. The molar mass of NaOH is 40.00 g/mol. How many moles of NaOH does this sample contain?
A) 4.000
B) 40.00
C) 160.0
D) 6,400
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A 4.55-g sample of helium gas at 22°C takes up a volume of 7.08 L. Determine the pressure of helium in units of atm.
The pressure of the helium gas in units of atm would be 3.93 atm
Ideal gas problemThe ideal gas law is represented by the following equation:
PV = nRT
Where:
P is the pressure of the gasV is the volume of the gasn is the number of mole of the gasR is the ideal gas constantT is the temperatureIn this case, n = mass/molar mass = 4.55/4 = 1.1375 mol
V = 7.08 L
R = 0.083
T = 22+273 = 295 K
P = nRT/V
= 1.1375x0.083x295/7.08
= 3.93 atm
Thus, the pressure of the helium gas would be 3.93 atm.
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Complete each table to show the number of atoms as you balance each of the following equations for the combustion of hydrocarbons. Use the first reaction and table as an example. First count the atoms on each side of the reaction. As you balance the equation, cross out the original number and add the new number.
The balanced chemical equations for the combustion of hydrocarbons are as follows:
.2 C₂H₆ + 5 O₂ ---> 2 CO₂ + 6 H₂O
C atoms - reactants = 4; products = 4
H atoms - reactants = 12; products = 12
O atoms - reactants = 10; products = 10
C₃H₈ + 5 O₂ ---> 3 CO₂ + 4 H₂O
C atoms - reactants = 3; products = 3
H atoms - reactants = 8; products = 8
O atoms - reactants = 10; products = 10
2 C₅H₁₂ + 11 O₂ ---> 10 CO₂ + 12 H₂O
C atoms - reactants = 10; products = 10
H atoms - reactants = 24; products = 24
O atoms - reactants = 22; products = 22
The balance equation of combustion reaction for the complete combustion of each molecule C₉H₁₆, C₁₀H₂₀, and C₈H₂₀.
C₉H₁₆ + 13 O₂ ---> 9 CO₂+ 8 H₂O
C₁₀H₂₀ + 15 O₂ ---> 10 CO₂ + 10 H₂O
C₈H₂₀ + 13 O₂ ---> 8 CO₂ + 10 H₂O
What are combustion reactions?A combustion reaction is a chemical reaction in which a substance reacts with oxygen resulting in the release of energy.
Hydrocarbons are compounds composed of only hydrogen and carbon.
They undergo combustion reactions to release heat energy, carbon dioxide, and water.
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A substance is present in the gaseous state at room temperature. Which of the following best explains the probable position of the substance in the periodic table?
1. It is between groups 1 to 12 because it is a metal.
2. It is between groups 13 to 18 because it is a metal.
3. It is between groups 1 to 12 because it is a non-metal.
4. It is between groups 13 to 18 because it is a non-metal.
A substance that is present in a gaseous state at room temperature would be between groups 13 to 18 on the periodic table because it is a non-metal. Option 4.
Gaseous elementsGaseous elements are elements that are in gaseous states at room temperature. They are usually found concentrated in the upper right corner on the right side of the periodic table.
Some of the gaseous elements include elements in group 18 which are collectively known as the noble gases, nitrogen in group 15, oxygen in group 16, and so on.
Even though some elements that exist as gases at room temperature can be found in other groups outside of groups 13 to 18, gaseous elements are concentrated between the referenced groups.
In other words, a substance that is present in the gaseous state at room temperature will most likely be between groups 13 to 18 of the period table.
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Given the following half-reactions and their respective standard reduction potentials 1.) Cu3+ + 2e- ---> Cu+....E1= 1.128V 2.) Cu2+ + e- ---> Cu+....E2=0.15V 3.) Cu2+ + 2e- ---> Cu(s)....E3=0.34V 4.) Cu3+ + 2e- ---> Cu+....E4=0.52V calculate the standard reduction potential for the reduction half-reaction of Cu(III) to Cu(II). Cu3+ + e- ---> Cu2+ E= ? V
The standard reduction potential for the reduction half-reaction of Cu(III) to Cu(II) is 0.608V.
E = 1.128V - 0.52V = 0.608V
The standard reduction potential for the reduction half-reaction of Cu(III) to Cu(II) can be calculated by subtracting the standard reduction potential for the reaction Cu3+ + 2e- ---> Cu+ (E4) from the standard reduction potential for the reaction Cu3+ + 2e- ---> Cu(s) (E3). Thus, the standard reduction potential for the reduction half-reaction of Cu(III) to Cu(II) is E = 1.128V - 0.52V = 0.608V.
The standard reduction potential for the reduction half-reaction of Cu(III) to Cu(II) is 0.608V.
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What is the relationship between the following two molecules? HOH Select one: a. Enantiomers b. Diastereomers c. Identical d. Constitutional Isomers
Diastereomers is the relationship between the following two molecules HOH.
What is the relationship between the following two molecules?The relationship between the two molecules HOH is that they are identical. They are both molecules of water, where two hydrogen atoms are covalently bonded to one oxygen atom.Both molecules have the same chemical formula (H2O), the same structural formula (H-O-H), the same molecular weight (18.015 g/mol), and the same molecular geometry (angular).Therefore, these two molecules are identical, and not enantiomers, diastereomers, or constitutional isomers. Enantiomers are molecules that are mirror images of each other and have the same molecular formula, but different physical and chemical properties.Diastereomers are molecules that have the same molecular formula, but differ in the arrangement of their atoms in space.Constitutional isomers are molecules that have the same molecular formula, but differ in their chemical structure.Consequently, HOH is not either of these, but instead they are identical molecules.To learn more about constitutional isomer refer to:
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need a description of the rocks read the instuctions below i already have rocks sorted out
Conglomerate is a type of sedimentary rock that is made up of rounded, cobble-sized clasts that are held together by a matrix of finer-grained sediment. The clasts can be made of any type of rock, and they are typically cemented together by a matrix of sand, silt, or clay.
Ammonite is a type of extinct marine mollusk that is known for its distinctive, coiled shell. These animals lived during the Mesozoic Era, from about 400 million years ago to about 65 million years ago. They are commonly found as fossils in sedimentary rock formations, especially in shale and limestone.
Crinoids are a type of marine animal that belong to the phylum Echinodermata, which also includes sea urchins and starfish. They are characterized by their five-fold symmetry and their long, slender stems, which are attached to the seafloor by a holdfast. Crinoids are filter feeders and are typically found in shallow marine environments.
Trilobites are a type of extinct arthropod that lived during the Paleozoic Era, from about 540 million years ago to about 250 million years ago. They are known for their distinctive, segmented bodies and their multi-lensed eyes, which are thought to have been highly advanced for their time. Trilobites are commonly found as fossils in sedimentary rock formations.
What is Paleozoic Era?The Paleozoic Era is a geologic time or period that lasted from about 540 million years ago to about 252 million years ago. It is the first of three eras in the Phanerozoic Eon, the current eon in Earth's history. The Paleozoic Era is divided into six periods: the Cambrian, Ordovician, Silurian, Devonian, Carboniferous, and Permian.
Therefore, the correct answers are as given above
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All nervous tissue is made up of nerve cells or _______. These transmit high-speed signals called ______ which can be thought of as being similar to an electric current.
Word bank: electrical impulses, dendrites, nerve impulses, axons,neurons
Blank 1:
Blank2:
The electrical signals are action potentials, which transmit the information from one of a neuron to the other.
Define electric current?
Electric current refers to the flow of electricity in an electronic circuit, and to the amount of electricity flowing through a circuit. It is measured in amperes (A). The larger the value in amperes, the more electricity is flowing in the circuit.Electric current is basically the flow or charge of the electric charge in motion in a conductor. It is said to exist when there is a net flow of charge through the region. the current is given as the flow of charge per second: I=timecharge. The SI unit of current is Ampere.Electric current is the rate of change of electric charge through a circuit. This electric current is related to the voltage and resistance of the circuit. Using Ohm's law, we can represent as the formula: I= \frac {V}{R}To learn more about current refers to:
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Select the correct answer from each drop-down menu. identify the type of reaction represented by each equation. a: h2 cl2 → 2hcl b: ch4 2o2 → co2 2h2o equation a represents a reaction, and equation b represents a reaction.
a. The equation a: h₂ + Cl₂ → 2hCl represents a reaction would indicate a synthesis reaction.
b. The equation b: CH₄ + 2O₂ → CO₂ + 2H₂O would reflect a combustion reaction.
Synthesis reactions include the joining of two or more atoms from distinct elements or molecules to create a final product. H₂ and Cl₂ combine to generate HCl in equation A.
Hence, the equation A is a synthesis reaction as a result.
In combustion reactions, chemicals react in the presence of oxygen to create new products, typically with the production of light and heat. In equation B, the reaction between CH₄ and O₂ results in the creation of heat together with CO₂ and H₂O.
So, the equation B is a combustion reaction as a result.
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Write the name for Ba 3(PO4)2
O barium phosphate
O barium phosphite
O barium (ll) phosphite
O barium (III) phosphite
O tribarium phosphorustetraoxide
The correct name for Ba3(PO4)2 is barium (III) phosphite. The name reflects the fact that the compound contains three barium cations and two phosphate anions, with the barium cations having an oxidation state of +3.
Chemical nomenclature is the formal system of naming chemical compounds. It is based on certain rules and conventions, and allows scientists to quickly and accurately identify and communicate the structure and composition of a compound.
The rules of chemical nomenclature vary depending on the type of compound, but generally involve assigning the correct prefix, suffix, and stem to the compound. The prefix indicates the type of element present in the compound, the stem indicates the number and arrangement of the atoms, and the suffix indicates the type of bonding and the type of compound. For example, the name for H2O is "dihydrogen monoxide" because the prefix "di" indicates two atoms of hydrogen, the stem "hydrogen" indicates that the compound contains hydrogen atoms, and the suffix "oxide" indicates that it is an oxide compound.
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Match the element with its oxidation number for the compound below. CuCl2 Question What is the oxidation number of Cu in CuCl2? What is the oxidation number of each Cl in CuCl2?
In the case of CuCl2, the oxidation number of Cu is +2 and the oxidation number of each Cl is -1.
What do you mean by oxidation number?
An oxidation number (also known as oxidation state) is a number that represents the degree of oxidation of an atom in a chemical compound. Oxidation numbers are used to indicate the oxidation state of an element in a chemical compound. They are assigned based on a set of rules, and can be positive, negative, or zero.
The oxidation number of an element in a compound is the charge that the element would have if the compound were composed of ions. In the case of CuCl2, the oxidation number of Cu is +2 and the oxidation number of each Cl is -1.
In CuCl2, Copper is a transition metal and it forms a cation (Cu2+) and each chlorine forms an anion Cl-. The total charge of the compound is zero, so the sum of the oxidation numbers of all the elements in the compound must be equal to zero. Therefore, Cu has an oxidation number of +2 and each Cl has an oxidation number of -1.
Hence, in the case of CuCl2 the oxidation number of Cu is +2 and the oxidation number of each Cl is -1.
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How do you balance the following reaction:
Cl2(g)+NaOH(aq)→NaCl(aq)+NaClO3(aq)+H2O(l)
The balanced chemical equation is given as :
3Cl₂(g) + 6NaOH(aq) -----> 5NaCl(aq) + NaClO₃(aq) + 3H₂O(l)
The chemical reaction is given as :
Cl₂ + NaOH -----> NaCl + NaClO₃ + H₂O
reactant product
Cl 2 2
Na 1 2
O 1 4
H 1 2
To balance the chemical equation , multiply 3 in Cl₂ , 6 in NaOH , 5 in NaCl and 3 in H₂O, we get :
3Cl₂(g) + 6NaOH(aq) -----> 5NaCl(aq) + NaClO₃(aq) + 3H₂O(l)
Now the equation is balanced as to balanced equation ,the number of the atoms in the reactants side is equals to the number of the atom in the product side.
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ALSO FOR 13 help asap please
Answer: 1 absolute zero
2. melting point
3.Sublimation
4.
5.Molecule
6. element
7.plasm
8.homogenous mixture
9.celsius
10. Liquid
11.catenation
12deposition
13.
Explanation:
Four students described the characteristics of four different states of matter. The table below shows the description given by each student.
Description of States of Matter
Student Description
A Particles are close together, randomly arranged
B Particles are far apart, constantly collide
C Particles are close together, arranged in fixed pattern
D Particles are charged that float around
Which student described liquids?
Answer:
A Particles are close together, randomly arranged
Explanation:
Liquids molecules are close to each other but randomly arranged whereas solid is in fixed pattern.
what is the molecular mass of milk of magnesia if 0.0275 mol weighs 1.603g
Answer:
58.29 g/mole (or 58.3 g/mole for 3 sig figs)
Explanation:
The term molecular, or molar mass of an atom or molecule is the number of grams of that substancce that is required to provide Avagadro's number of particles (atoms/molecules) of that substance. If 0.0275 mole weighs 1.603 grams, we can find the molar mass by dividing the two given values:
(1.603 grams)/(0.0275 moles) = 58.29 g/mole.
Note that the division of grams by the moles yileds the correct unit: grams/mole. The division essentially tells us how many grams are in one mole of the substance.
The molecular mass of milk of magnesia if 0.0275 mol weighs 1.603g is 58.29g/mol.
How to calculate molecular mass?Molecular mass refers to the mass of an individual molecule of an element or compound.
The molecular mass of a substance can be calculated by dividing the mass of that substance by the number of moles it contains as follows:
molecular mass = mass ÷ no of moles
According to this question, 0.0275 moles of magnesia weighs 1.603g. The molecular mass can be calculated as follows:
molecular mass = 1.603g ÷ 0.0275moles
molecular mass = 58.29g/mol
Therefore, 58.29g/mol is the molecular mass of magnesia.
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consider bromine, which occurs as a mixture of two isotopes: bromine-79, with a natural abundance of 50.7% and an exact mass of 78.92 amu and bromine-81, with a natural abundance of 49.3% and an exact mass of 80.92 amu. what is the average atomic mass of bromine?
The answer given in the question is option a, which is the average molecular mass of bromine, which is 79.9 amu.
What is an isotope ?Isotopes are atoms that possess the same atomic weight but differing numbers of neutrons. They differ in mass and hence in physical qualities, although having nearly identical chemical properties.
Atomic mass of bromine = ?
Percent abundance of 1st isotope = 50.7%
First isotope's atomic mass is 78.92 amu.
Percent abundance of 2nd isotope = 49.3%
Atomic mass of 2nd isotope =80.92 amu
Average atomic mass is equal to the product of the atomic masses of the first and second isotopes, divided by 100.
Average atomic mass = (50.7×78.92)+(49.3×80.92) /100
Average atomic mass = 4001.24 + 3989.36 / 100
Average atomic mass = 7990.6 / 100
Average atomic mass = 79.9 amu.
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The Complete Question :
What is the atomic mass of bromine, given the atomic masses and percent abundance of the two isotopes are 78.92 amu (50.7%) and 80.92 amu (49.3%)?
Select one:
a. 79.9 amu
b. 78.9 amu
c. 80.9 amu
d. 35 amu
The answer given in the question is option a, which is the average molecular mass of bromine, which is 79.9 amu.
What is an isotope ?Isotopes are atoms that possess the same atomic weight but differing numbers of neutrons. They differ in mass and hence in physical qualities, although having nearly identical chemical properties.
Given that,
Percent abundance of 1st isotope = 50.7%
First isotope's atomic mass is 78.92 amu.
Percent abundance of 2nd isotope = 49.3%
Atomic mass of 2nd isotope =80.92 amu
Atomic mass of bromine = ?
Average atomic mass is equal to the product of the atomic masses of the first and second isotopes, divided by 100.
Average atomic mass = (50.7×78.92) + (49.3×80.92) / 100
Average atomic mass = 4001.24 + 3989.36 / 100
Average atomic mass = 7990.6 / 100
Average atomic mass = 79.9 amu.
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Determine the shape and appropriate bond angles for a compound that has a central sulfur atom with two unshared pairs of electrons and single bonds to two hydrogen atoms
According to the molecular geometry, the shape of of compound with central sulfur atom with two unshared pairs of electrons and single bonds to two hydrogen atoms is V-shaped and bond angle is 92.1 °.
What is molecular geometry?Molecular geometry can be defined as a three -dimensional arrangement of atoms which constitute the molecule.It includes parameters like bond length,bond angle and torsional angles.
It influences many properties of molecules like reactivity,polarity color,magnetism .The molecular geometry can be determined by various spectroscopic methods and diffraction methods , some of which are infrared,microwave and Raman spectroscopy.
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will precipitation occur when the following solutions are mixed? if so, write a balanced chemical equation for the reaction. (a) na2co3 and agno3, (b) nano3 and niso4, (c) feso4 and pb1no322.
If following solutions are mixed then only Na₂CO₃ and AgNO₃ will form precipitation.
Balance chemical equation for this is as shown below:
Na₂CO₃(aq) + 2 AgNO₃(aq) ⇒ Ag₂CO₃(s) + 2NaNO₃(aq)
NaNO₃ and NiSO₄ doesn't form precipitation.
PPT is any liquid or frozen water that forms in the atmosphere and falls back to the Earth. It comes in multitudinous forms, like rain, sleet, and snow. Along with evaporation and condensation, ppt is one of the three major corridors of the global water cycle.
A balanced chemical equation is an equation where the number of particles of each type in the response is the same on both reactants and product sides. The mass, as well as the change, are equal in a balanced chemical equation.
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Reading Check
Check your understanding by answering the question below.
In(BLANK)
a general idea is used to draw specific conclusions.
Drawing conclusions is the process of making sense of information that has been hinted at or implied. As a result, the information is seldom given in an obvious way.
What does "draw a conclusion" mean?To arrive at trustworthy findings, careful evidence collecting, analysis, and judgements that can withstand scrutiny are required. As an author, you are presenting your findings for readers to assess, thus you must be compelling based on the information you present in your piece.
Posing a sound question, formulating a working hypothesis, conducting research, identifying and controlling factors, recording observations during testing, gathering data, and drawing conclusions are all necessary steps. If you use spec sheets, diagrams, and graphs, your results are simpler to organise and present.
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The diagram shows layers of sedimentary rocks.
What do the rock layers show?
O Sedimentary rocks were deposited then intruded by lava that formed igneous rock.
O An igneous rock formed, and sedimentary rocks were deposited around it.
An earthquake occurred and formed a fault through sedimentary rocks.
O A stream cut through sedimentary rocks over a long period of time.
The rock layers show that an earthquake occurred and formed a fault through sedimentary rocks. That is option C.
What is a sedimentary rock?A sedimentary rock is defined as the type of rock that are formed from deposits of dead organic materials that accumulates over a long period of time.
A fault has the ability to develop through the layers of the sedimentary rock when earthquake occurs and this causes the layers of the rock to move relative to each other.
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What environmental problem that contributes to global warming is addressed by using amine solutions to treat the fumes of a coal-burning power plant
Coal-burning power plants are one of the largest contributors to global warming, due to the high amount of carbon dioxide they emit. Amine solutions can be used to treat the fumes of these power plants, helping to reduce their carbon dioxide emissions.
Amine solutions absorb carbon dioxide from the fumes, trapping it in a water-based solution, which can then be separated from the plant’s exhaust gases. This process helps to reduce the amount of carbon dioxide that is released into the atmosphere, thus helping to mitigate the effects of global warming.
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why group V III elements are called Global /inert gas
Neon, argon, krypton, xenon, helium, and radon are examples of noble gases. Due to their monatomic nature and general chemical inertness, these gases are referred to as inert gases.
Explain about the noble gases?Under typical circumstances, the noble gases are inert, tasteless, odorless, and nonflammable. In the past, they were referred to as belonging to group 0 in the periodic table since it was thought that they had a valence of zero, which meant that their atoms couldn't interact with those of other elements to form compounds.
The elements in Group 18 of the periodic table are known as noble gases, also referred to as inert gases. They are made up of radioactive radon, which lacks any known stable isotopes, as well as helium, neon, argon, krypton, and xenon. Because they hardly ever bind with less-than-stellar elements—those with open outer electron shells—this is why they are known as "noble" gases.
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Calculate the standard cell potential for mg(s)+fe2+(aq)→mg2+(aq)+fe(s)
The standard cell potential for the equation is 1.89V.
The potential of a cell at its standard state, which is roughly represented by concentrations of 1 M and pressures of 1 atm at 25 C, is known as the standard state potential. For the cell, write the oxidation and reduction half-reactions.
The equation given is
[tex]Mg(s)+Fe^{2}(aq)- > Mg^{+2}(aq)+Fe(s)[/tex]
Here, magnesium acts as an anode because it loses electrons during oxidation. Iron acts as a cathode when it undergoes reduction by gaining electrons.
Now, the formula to calculate the standard potential cell is
[tex]EMF=E^{o} _{cathode} -E^{o} _{anode}[/tex]
Now, here standard potential of magnesium is -2.38V
and standard potential of iron is -0.49V
which gives,
EMF=-0.49+2.38
EMF=1.89V
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nitrogen is the ________ component of the atmosphere in terms of volume.
Nitrogen is the most abundant component of the atmosphere in terms of volume. This means that nitrogen makes up the largest part of the atmosphere in terms of volume compared to other components.
Nitrogen is an extremely important component of the atmosphere, making up 78% of the atmosphere in terms of volume. This means that nitrogen is the most abundant component of the atmosphere when looking at volume. This abundance of nitrogen is due to the fact that the atmosphere is made up of mostly nitrogen and oxygen. Nitrogen is used to create the majority of the air we breathe, and is essential for life on Earth. Nitrogen also plays an important role in the global climate, as it is a key component of the Earth's greenhouse gases. It helps regulate temperatures and also helps protect the planet from the damaging effects of the sun's radiation. Nitrogen is essential for all living things, making it an incredibly important component of the atmosphere.
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A refrigerator delays the spoilage of food by ________.
A.killing microorganisms
B.slowing down the rate of chemical reactions within microorganisms
C.expanding the water found within microorganisms
D.diminishing the supply of oxygen to microorganisms
A refrigerator delays the spoilage of food by slowing down the rate of chemical reactions within microorganisms. Therefore, option B is correct.
What do you mean by chemical reaction ?The term chemical reaction is defined as the processes, in which substances undergo a chemical change to formed new substances, with all new properties.
Higher temperatures often result in faster chemical reactions. When food is left on the kitchen counter, it can soon become bad. The process is slowed down by the refrigerator's lower temperature, which allows the same food to stay fresh for longer.
Bacteria, molds, and yeasts are all potential sources of microbial deterioration. Food's water activity plays a significant role in determining the type of food decomposition that results.
Thus, option B is correct.
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