Answer:
d.
Explanation:
Give the following compound's base name.
Answer:
2-Butyne
Explanation:
The given compound name is 2-Butyne.
According to the IUPAC rule, the compound is consist of 4 carbon atoms with triple bond at second carbon atom, so its name will be 2-Butyne or but-2-yne. 2-Butyne is an alkyne which is produced artificially at standard temperature and pressure.
Hence, the correct answer is "2-Butyne".
8.5 x 10^-2 standard form
Answer:
Either
8.2
×
10
5
is already in standard notation
or you want
820
,
000
Explanation:
"Standard notation" is often used as a synonym for scientific nation, in which case the given format is already in standard notation.
However, some people use "standard notation" for what we might think of as "common form"
To convert from scientific notation to common form move the decimal point in the mantissa (in this case
8.2
) to the right the number of places indicated by
10
's exponent (in this case 5). [If the exponent is negative the decimal point will be moved to the left].
Two elements are studied. One has atomic number X and one has atomic number X+2. It is known that element X is a halogen. To what group does the X+2 element belong?
Answer:
Group 1 (or IA)
Explanation:
If element X is a halogen, then it belongs to the group 17 (or VIIA, under a different notation).
For each extra unit of atomic number, the group number increases by 1. That means that the X+1 element would belong to the group 18 (or VIIIA). The X+2 element would thus belong in the group 1 (or IA) one period higher (higher as in numeric value, not as in position in the periodic table).
Someone help me pls thank you
The solubilty product (Ksp) of PbCl₂ : Ksp = [Pb²⁺][Cl⁻]²
Further explanationGiven
PbCl₂ compound
Required
The solubilty product (Ksp)
Solution
Ksp is the product of ions in an equilibrium saturated state
For reaction :
AₓBₐ (s) ⇔ aAᵃ⁺ (aq) + b Bᵇ⁻ (aq)
Can be formulated :
Ksp = [Aᵃ⁺] ᵃ [Bᵇ⁻] ᵇ
For PbCl₂ :
PbCl₂(s)⇔Pb²⁺(aq) + 2Cl⁻(aq)
Ksp = [Pb²⁺][Cl⁻]²
In your own words, explain one part of the host's analogy.
Answer:
where is the text? i can only help you if i have the text or story. sorry.
Explanation:
WILL MARK BRAINLIEST! PLEASE HELP!!
Heterogeneous mixtures for Liquid in liquid, liquid in solid, gas in gas, solids in gas.
Homogeneous mixtures for gas in solid, gas in gas, solid in gas.
Answer:Concrete is a heterogeneous mixture of an aggregate: cement, and water.
Sugar and sand form a heterogeneous mixture. If you look closely, you can identify tiny sugar crystals and particles of sand.
Ice cubes in cola form a heterogeneous mixture. The ice and soda are in two distinct phases of matter (solid and liquid).
Salt and pepper form a heterogeneous mixture.
Chocolate chip cookies are a heterogeneous mixture. If you take a bite from a cookie, you may not get the same number of chips as you get in another bite.
*Soda is considered a heterogeneous mixture. It contains water, sugar, and carbon dioxide, which forms bubbles. While the sugar, water, and flavorings may form a chemical solution, the carbon dioxide bubbles are not uniformly distributed throughout the liquid.
An example of homogenization is homogenized milk, which is processed so that the milk components are stable and don't separate.
In contrast, natural milk, while it might appear homogeneous when shaken, isn't stable and readily separates into different layers.
I hope that helped!
Which of the following atom(s) always exists in pairs (never alone) and is considered a
diatomic molecule? Choose all that apply.
Answer:
Diatomic molecules consist of two atoms bonded together. In contrast, monatomic elements consist of single atoms (e.g., Ar, He). Many compounds are diatomic, such as HCl, NaCl, and KBr. Diatomic compounds consist of two different elements. There are seven pure elements that form diatomic molecules.
Please help fast I will give brainliest if correct
Answer:
the answer you marked is correct
Explanation:
Answer:
the answer you marked is correct
What is the name and formula of Calcium & Antimony
Answer:
Ca3Sb2Antimony--calcium (2/3) | Ca3Sb2 - PubChem.Explanation:
I hope it's help
Nitrogen has two isotopes. One has an atomic mass of 14.003 amu and a relative abundance of 99.63% while the other isotope has an atomic mass of 15.000 amu and a relative abundance of 0.37%. What is the average atomic mass for nitrogen?
Answer:
Average atomic mass = 14.0067 amu.
Explanation:
Given data:
Abundance of 1st isotope = 99.63%
Atomic mass of 1st isotope = 14.003 amu
Abundance of 2nd isotope = 0.37%
Atomic mass of 2nd isotope = 15.000 amu
Solution:
Average atomic mass = (abundance of 1st isotope × its atomic mass) +(abundance of 2nd isotope × its atomic mass) / 100
Average atomic mass = (99.63×14.003)+(0.37×15.000) /100
Average atomic mass = 1395.119 + 5.55 / 100
Average atomic mass = 1400.67 / 100
Average atomic mass = 14.0067 amu.
Which substances are bases? Check all that apply.
NaOH
KOH
H3BO3
NaCl
Ca(OH)2
Fe2O3
Answer:
Which substances are bases? Check all that apply.
NaOH ✔️
KOH ✔️
H3BO3
NaCl
Ca(OH)2 ✔️
Fe2O3
so (a) (b) and (e)
Explanation:
Which one of the following sodium compounds produces a gas when treated with dilute
sulphuric acid?
A sodium carbonate
B sodium chloride
С sodium fluoride
D sodium iodide
Answer:
A. Sodium in Carbonate
Explanation:
Carbon dioxide is the gas that is produced. This is achieved according to the equation below.
CaCO3+2HCl → CaCl2+CO2+H2O
Please help! 20 Points!!!
Identify the substances that will appear in the equilibrium constant expression for the equation:
2 upper A g superscript plus (a q) plus upper Z n (s) double arrow upper Z n superscript 2 plus (a q) plus 2 upper A g (s).
Check all that apply.
Ag+
Zn
Zn2+
Ag
Answer:
I just did it home slice the first one's Ag+ and Zn2+ and the second one is A
Explanation:
I just did the assignment
Answer:
ag+ and zn2+
Explanation:
second question is A
Choose the correct statements.
A. Elements are usually found in their pure form.
B. Four valence electrons is the most stable configuration.
C. The noble gases are
very stable.
D. A chemical bond is a strong attractive force between atoms.
Explanation:
C. Nobel gas are very stable because in their valance shell maximum number of electrons are present
Answer: option a,d
Explanation:
Just took the quiz
Which of the follow statements about isotopes is NOT correct?
A- Isotopes are the same element but with different masses
B- Isotopes are often used for dating artifacts and fossils
C- Isotopes have different numbers of electrons
D- Isotopes are often radioactive
Answer: B- Isotopes are often used for dating artifacts and fossils is incorrect.
Explanation: I hope that helped
Answer: C
Explanation: Edge
USING THE ELECTRON DOT DIAGRAM HOW MANY ELECTRONS DOES IT TAKE TO FILL UP THE SECOND SHELL OF AN ATOM?
Answer:
8
shell 1 =2
shell 2 =8
shell 3 =8
shell 4 =2
The VOLUME of an irregular shaped object is to be determined by using the water displacement technique. When the irregularly shaped object is totally submerged the volume of water in a graduated cylinder increases from 10 mL to 15 mL. What is the volume of the irregularly shaped object?
Answer:
5 mL
Explanation:
When an object is completely submerged in a liquid , it displaces liquid equal to its volume . Therefore level of liquid is raised in a container containing liquid .
When the irregularly shaped object is totally submerged the volume of water in a graduated cylinder increases from 10 mL to 15 mL.
Initially volume of water contained = 10 mL
volume of water + volume of irregular shaped object = 15 mL
volume of irregular shaped object = 15 - 10 = 5 mL .
1. What is the theoretical
yield of C6H5Br in this reaction when 30.0 g of C6H6
reacts with excess Br2? If the
actual yield of C6H5Br was 56.7
g,
what
is
the
percent
yield?
Answer:
The theoretical yield in grams is 60.292 grams, and in moles the theoretical yield is 0.384. The percent yield is 94%.
Explanation:
The theoretical yield of bromobenzene is 60.3 grams and the percent yield of the reaction is 94.0%.
Explanation:
The percentage yield of the reaction is given by :[tex]Yield(\%)=\frac{\text{Actual or experimental yield}}{\text{Theoretcial yield}}\times 100[/tex]
Experimental yield is the amount of product produced after the carrying out the reaction practically.Theoretical yield is the amount of product calculated mathematically by using the amount of reactant.Given:
Mass of benzene = 30.0 g
The actual yield of bromobenzene = 56.7 g
To find:
Theoretical yield and percent yield of the reaction.
Solution:
Mass of benzene = 30.0 g
Moles of benzene =[tex]\frac{30.0 g}{78.11 g/mol}=0.384 mol[/tex]
[tex]C_6H_6+Br_2\rightarrow C_6H_5Br+HBr[/tex]
According to reaction, 1 mole of benzene gives 1 mole of bromobenzene, then 0.384 moles of benzene will give:
[tex]=\frac{1}{1}\times 0.384 mol=0.384 \text{mol of bromobenzene}[/tex]
Mass of 0.384 moles bromobenzene:
[tex]=0.384 mol\times 157.02g/mol=60.3 g[/tex]
The theoretical yield of bromobenzene = 60.3 g
The actual yield of bromobenzene = 56.7 g
The percent yield of the reaction:
[tex]Yield(\%)=\frac{56.7 g}{60.3 g}\times 100=94.0\%[/tex]
The theoretical yield of bromobenzene is 60.3 grams and the percent yield of the reaction is 94.0%.
Learn more about the percent yield of reaction here:
brainly.com/question/14519588?referrer=searchResults
brainly.com/question/2506978?referrer=searchResults
Electromagnetic radiation with a wavelength of 575 nm appears as yellow light to the human eye. The energy of one photon of this light is 3.46 × 10 -19 J. Thus, a laser that emits of energy in a pulse of light at this wavelength produces ________ photons in each pulse.
Answer:
9.12 * 10^20 photons
Explanation:
Given that;
E=n⋅h⋅ν
Where;
E= energy of the electromagnetic radiation
n = number of photons
h = Plank's constant
ν = frequency of electromagnetic radiation
Hence;
n = E/hν
n = 3.46 × 10 -19/6.6 * 10^-34 * 575 * 10^-9
n = 3.46 × 10 -19/3795 * 10^-43
n= 9.12 * 10^20 photons
what the freak help me, I will give branliest for fast answers and correct
Which equation correctly represents the ionization process?
a. element + ionization energy --> ion+1 - 1 electron
b. element + ionization energy --> ion-1 + 1 electron
c. element + ionization energy --> ion+1 - 1 electron
d. element + ionization energy --> ion+1 + 1 electron
Explanation:
um2rqyium
yk5ebskutdbuktdubtkr utk tkr utku mryu rmyr
pls help ill give brainliest
Answer:
The could watch for a Millard reaction (if the pie is cooked enough) and an endothermic reaction (if the pie burns)
Explanation:
An investigation into an unknown object in space resulted in the following observations:
It is made of rock.
It has a round shape.
What additional piece of information is required to confirm that the object is an asteroid?
It gives off light.
It has a tail of dust and gas.
It orbits the sun.
It rotates on its axis.
An investigation into an unknown object in space resulted in the following observations: It was discovered to be an asteroid, It revolves around the sun, which is in the third position.
What is an asteroid?It is a small, rocky substance that rotates around the sun and is found in the asteroid belt, which is located between the orbits of Mars and Jupiter, and its size varies, with some still in fragments and others having a large structure.
Hence, an investigation into an unknown object in space resulted in the following observations: It was discovered to be an asteroid, It revolves around the sun, which is in the third position.
Learn more about the asteroid here.
https://brainly.com/question/19161842
#SPJ1
What would be the balanced chemical equation for the complete combustion of butane ( C4H10 .)
Select one:
a. 2 C4H10 + 5 CO2 --> 8 NiO2 + 5 H2O
b. 2 C4H10 + 13 O2 --> 8 CO2 + 10 H2O
c. 2 C4H10 + 13 CO2 --> 8 O2 + 10 H2O
d. 4 C4H10 + 6 H2O --> 8 CO2 + 5 O2
The balanced chemical equation b. 2 C₄H₁₀ + 13 O₂ ⇒ 8 CO₂ + 10 H₂O
Further explanationGiven
Butane (C₄H₁₀)
Required
Balanced equation
Solution
Formula
Hydrocarbon combustion reactions (specifically alkanes)
[tex]\large {\box {\bold {C_nH _ (_2_n _ + _ 2_) + \dfrac {3n + 1} {2} O_2 \rightarrow nCO_2 + (n + 1) H_2O}}}[/tex]
In the combustion process, the compound in the reactants is Oxygen (O₂)
If the oxygen needed for combustion is sufficient (or excess) then the combustion results are in the form of CO₂ and H₂O, but if not enough, CO and H₂O will be obtained.
The only answer that contains O₂ in the reactants is option B
What is the difference between a physical property and a chemical property?
Answer/Explanation:
Physical properties include color, density, hardness, and melting and boiling points. A chemical property describes the ability of a substance to undergo a specific chemical change. Any characteristic that can be determined only by changing a substance's molecular structure.
How many grams of water, H20 are needed if 88
grams of CO2 gas are produced?
Answer:
Explanation:
If one mole of carbon monoxide has a mass of 28.01 g and one mole of carbon dioxide has a mass of 44.01 g , it follows that the reaction produces 44.01 g of carbon dioxide for every 28.01 g of carbon monoxide.
C3H8(g) + 5O2(g) → 3CO2(g) + 4H2O(g)
88.
88.0g C3H8 x (1 mol C3H8 / 44.0g C3H8) x (4 mol H2O / 1 mol C3H8) x (18.0g H2O / 1 mol H2O) = 144g H2O.
How many moles are in 88 grams of CO2?total mass co2 is 44 mass of given co2 is 88 in such a way nom of moles we get is 2. CO2 - ATOMIC MASS - 12 + 2 x 16 = 44 .
How many grams of C2H6 are required to produce 88 grams of CO2 when it is burned in the excess of oxygen?How many grams of C2H6 are required to produce 88 grams of CO2 when it is burned in the excess of oxygen? Explanation: 1 gram mole of C2H6 = 2 gram moles of CO2. Explanation: The number of each element is equal on both sides. 9.
Learn more about CO2 gas are produced at
https://brainly.com/question/23865234
#SPJ2
For the following incomplete combustion reaction, what are the coefficients necessary to balance the equation:
___ CH4 + ___ O2 → ___ CO2 + ___ H2O + ___ C + ___ CO
Select one:
a. 4,6,1,8,1,2
b. 4,8,1,2,1,6
c. 8,1,1,2,4,6
d. 6,1,8,2,1,4
Answer: A
Explanation:
Which phase of matter resists compression the most?
How much has the seafloor spread since Columbus sailed?
10 centimeters
10 meters
100 meters
10 kilometers
Answer:10 meters
Explanation:
because that what he speaded
PLEASE HELP!!
George is writing an essay about the role of observation and inference in the development of the atomic theory. He wants to explain why it was more difficult to observe the presence of neutrons in atoms. Which statements should he include in his essay? Choose the two statements that apply.
A. While protons or electrons can be influenced by other charged particles, neutrons are not.
B. It was difficult to observe that neutrons were different than protons because the two particles respond to charge in the same way.
C. It was difficult to observe that neutrons were different than electrons because the two particles respond to charge in the same way.
D. Neutrons are held tightly together with protons in the nucleus, so scientists could not observe the behavior of neutrons independently.
Answer:
D and A
Explanation:
While protons or electrons can be influenced by other charged particles, neutrons are not.
and
Neutrons are held tightly together with protons in the nucleus, so scientists could not observe the behavior of neutrons independently.
I’ll mark as brainliest
CaCO3 + 2HCl -> CaCl2+ CO2+ H2O
How much Carbon Dioxide will be produced if you start with 10g of Calcium Carbonate ?
please help me to answer this question
First, let's count mole of 10 g Calcium Carbonate
mole = Mass / Molecular Mass
Calcium Carbonate = CaCO₃
Molecular Mass = Ar Ca + Ar C + (3 x Ar O)
Molecular Mass = 40 + 12 + (3 x 16)
Molecular Mass = 100
next
Mole of CaCO₃ = 10 gram / 100
Mole of CaCO₃ = 0,1 mol
then equal the reaction equation first
CaCO₃ + 2 HCl ==> CaCl₂ + CO₂ + H₂O (Equal)
To count the mass of carbon dioxide that produced we must know the mole of CO₂ first
we can count by coefficient comparison
mole CO₂ = [tex]\frac{coefficient \ of \ CO_2}{coefficient \ of \ CaCO_3}[/tex] x mole CaCO₃
mole CO₂ = (1/1) x 0,1 mole
mole CO₂ = 0,1 mole
so
Mass of CO₂ = mole CO₂ x Molecular Mass of CO₂
Mass of CO₂ = 0,1 mole x (12 + (2 x 16))
Mass of CO₂ = 0,1 mole x 44
Mass of CO₂ = 4,4 g
so, mass of carbon dioxide that's produced by 10 g of calcium carbonate on reaction with chloride acid is 4,4 g.
