consider the following general reaction and data: 2a + 2 b + c latex: \longrightarrow ⟶ d + 3 e
What is the rate constant (k)?
(MTS 2/17/2018)
Expt initial rate (M/s) initial [A] (M) initial [B] (M) initial [C] (M)
1 6.0x10-6 0.024 0.085 0.032
2 9.6x10-5 0.096 0.085 0.032
3 1.5x10-5 0.024 0.034 0.080
4 1.5x10-6 0.012 0.170 0.032

Answer:

alminum

Explanation:

beacause its amzing

Answer:

Ne, Neon

Explanation:

The Flourine Anion (F-) has one more electron (more negative) than nuetral Flourine.

The electrion configuration of neutral floruine is 1s2 2s2 2p5

If we add one more electron, to get anion fluorine (F-)

We get:

1s2 2s2 2p6 (giving us 10 electrons)

Which also matches the electron configuration of Neon, Ne

Mole measure the number of elementary entities of a given substance that are present in a given sample. Therefore, 3.5mole of Zn(NO[tex]_3[/tex])[tex]_2[/tex] form 7.0 mol AgNO[tex]_3[/tex] is produced.

The SI unit of amount of substance in chemistry is mole. The mole is used to measure the quantity or amount of substance. We know one mole of any element contains 6.022×10²³ atoms which is also called Avogadro number.

The balanced equation for 7.0 mol AgNO[tex]_3[/tex] reaction with 3.0 mol Zn in

a single replacement reaction is

2AgNO[tex]_3[/tex] + Zn → 2Ag + Zn(NO[tex]_3[/tex])[tex]_2[/tex]

moles of AgNO[tex]_3[/tex] = 7.0 mol

The mole ratio between AgNO[tex]_3[/tex] and Zn(NO[tex]_3[/tex])[tex]_2[/tex] is 2:1

from 2 moles of AgNO[tex]_3[/tex], 1 mole of Zn(NO[tex]_3[/tex])[tex]_2[/tex]

from 1 moles of AgNO[tex]_3[/tex], 1/2 mole of Zn(NO[tex]_3[/tex])[tex]_2[/tex]

from 7.0 moles of AgNO[tex]_3[/tex], (1/2)× 7.0=3.5mole of Zn(NO[tex]_3[/tex])[tex]_2[/tex]

Therefore, 3.5mole of Zn(NO[tex]_3[/tex])[tex]_2[/tex] form 7.0 mol AgNO[tex]_3[/tex] is produced.

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There is no possible Lewis structure for C3NOH7.

What is a Lewis structure?

A Lewis structure, also known as a Lewis dot diagram, is a way to represent the bonding and non-bonding electrons in a molecule. It is named after Gilbert N. Lewis, who introduced it in 1916. A Lewis structure shows the chemical symbol of each atom in the molecule and the electrons that are involved in the chemical bonds. It is used to predict the molecular geometry, reactivity, and other chemical properties of a molecule.

C3NOH7 is a molecule that does not exist in nature, it is not a stable compound. Nitrogen is not a typical Lewis acid, and it is unlikely that it will form a Lewis structure with 7 hydroxyl groups. It is not possible to draw a Lewis structure for C3NOH7, as the molecule is not stable and it is not a valid chemical compound.

It is important to make sure that the chemical formula is correct and corresponds to a stable and well-characterized compound before attempting to draw a Lewis structure.

Hence, there is no possible way to draw a Lewis structure for C3NOH7.

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                            ..

                            O :

                            ||   ..

The H₃C - CH₂ - C - NH₂  is the possible Lewis structure for C3NOH7.

What is Lewis structure?

All valence electrons are represented structurally by Lewis structures, which are used for molecules and polyatomic ions. These structural formulas are also known as Lewis dot structures because valence electrons are frequently depicted as dots in mathematical representations of matter.

What is electron?

An electron can either be unattached to an atom or free. An electron is a subatomic particle that has a negative charge (not bound). An atom is made up of three different sorts of particles: protons, neutrons, and an electron that is connected to an atom. An atom's nucleus is made up of protons, neutrons, and electrons.

                    ..

                   O :

                    ||   ..

H₃C - CH₂ - C - NH₂

                                      ..

                                       O :

                                       ||   ..

Therefore, H₃C - CH₂ - C - NH₂ is the possible Lewis structure for C3NOH7.

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During the reaction of glucose is to Co2, the glycolysis produces pyruvate, ATP, and NADH by oxidizing glucose. The answer is option (a).

In the process of the glycolysis reaction, the glucose is broke down into pyruvate and energy. a total of 2 ATP is derived in the process (Glucose + 2 NAD+ + 2 ADP + 2 Pi --> 2 Pyruvate + 2 NADH + 2 H+ + 2 ATP + 2 H2O). The hydroxyl groups allow for phosphorylation. The specific form of glucose used in glycolysis is glucose 6-phosphate. The glycolysis process involves the generation of two molecules of the reduced form of nicotinamide adenine dinucleotide (NADH).

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One water molecule (H2O) contained two hydrogens (H) atoms and one oxygen (O) atom (O). As a result, one molecule of water contains three atoms.

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Taking into account the reaction stoichiometry, a mass of 13 grams of C₂H₂ is required to produce 1.0 moles of CO₂.

In first place, the balanced reaction is:

2 C₂H₂ + 5 O₂  → 4 CO₂ + 2 H₂O

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound are part of the reaction:

The molar mass of the compounds is:

By reaction stoichiometry, the following mass quantities of each compound are part of the reaction:

The following rule of three can be applied: If by reaction stoichiometry 4 moles of CO₂ are formed from 52 grams of C₂H₂, 1 mole of CO₂ is formed from how much mass of C₂H₂?

mass of C₂H₂= (1 mole of CO₂×52 grams of C₂H₂)÷ 4 mole of CO₂

mass of C₂H₂= 13 grams

Finally, 13 grams of C₂H₂ is required.

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Since chlorine is more electronegative than iodine, each I-Cl bond is polar. Due to the square planar geometry, the compound anion itself is not polar.

The ICl4- Lewis Structure (Tetrachloroiodide Ion), Since chlorine has a higher electronegative valence than iodine, each I-Cl bond is polar. The square planar shape, however, prevents this compound anion from being polar.

The ICl4 ion, with five nuclei, forms an octahedron with two missing opposite vertices that is square planar in shape.

A central atom is surrounded by constituent atoms, which on the same plane serve as the square's corners, in square planar molecular geometry. Transition metal complexes with the d8 configuration are common examples of the geometry. A few examples of this are Rh(I), Ir(I), Pd(II), Pt(II), and Au (III).

When describing the stereochemistry (spatial arrangement of atoms) used by some chemical compounds, square planar molecular geometry is used in chemistry.

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In the presence of 55.0 moles of oxygen, 73.3 moles of iron can be used to produce iron (III) oxide.

Stoichiometry refers to the study and calculation of quantitative (measurable) relationships of the reactants and products in chemical reactions (chemical equations).

According to this question, iron reacts with oxygen gas to produce iron(III) oxide as follows:

4Fe + 3O₂ → 2Fe₂O₃

Based on the above equation, 4 moles of iron reacts with 3 moles of oxygen.

This means that if 55 moles of oxygen reacts, 55 × ⁴/3 = 73.3 moles of iron will also react.

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1)  NaCl(aq) + AgNO3(aq) → double displacement

2) Fe + CuSO4 (aq) → FeSO4 (aq) + Cu (s) The type of reaction is a    displacement reaction.

3) C4H 10(g) +O2(g) → 4CO2(g) +5H 2O(g) - combustion reaction

4)Ba (NO3)2 + Na2SO4 → BaSO4 + 2NaNO3 -double replacement reaction

5) AgNO3 + Li = LiNO3 + Ag might be an ionic equation.- redox reaction

6) LiBr(aq) + Cu(s) = CuBr(s) + Li(s)- redox reaction (ionic equation)

For sulfur tetrachloride, all six of the valence electrons in sulfur are used in bonds.

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Dry ice in an ice-cream cart disappears  on sublimation .

In general , because of the process of absorption of heat , dry ice when present in the solid state is directly transformed directly into a gas without being converted into a liquid state and thus disappears. Dry ice get physical transformation by the process of sublimation that is from solid to the gaseous state without melting into a liquid.

Hence , we  can say that sublimation is a process that is used to explain  about the process of snow and ice changing into water vapor (gas) in the air without melting into water. Dry ice is generally present in solid state, that get to sublimate, or turn to gas, at a chilly -78.5 °C.

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The average atomic mass of fe with 3 isotopes is 55.96u

Given, abundance of isotopes,

54Fe-5%

56Fe 90%

57Fe-5%

(Considering the 3rd isotope as "Fe)

Thus, Atomic mass of Fe = ?

Atomic mass - Σabudnance x Mass number 100

= 5x54+90x56+5×57 / 100

= 55.95

Atomic mass of Fe = 55.95

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The average atomic mass of iron with isotopes Fe⁵⁴, Fe⁵⁶ , Fe⁵⁷ , Fe⁵⁸ is 55.84 amu.

Given

Isotopes Fe⁵⁴ = 53.940 amu and 5.82%

Isotopes  Fe⁵⁶ = 55.935 amu and 91.66 %

Isotopes Fe⁵⁷ = 56.935 amu and 2.19 %

Isotopes Fe⁵⁸ = 57.933 amu and 0.33%

Average mass = (% abundance x isotope mass I + % abundance x isotopes mass II )/ 100

Average mass = (53.940 x 5.82% + 55.935 x 91.66 % +56.935 x 2.19 % + 57.933 x 0.33% ) /100

Average mass = 55.84 amu

Hence, average atomic mass is based on the abundance of isotopes.

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The reaction rate is generally faster when the surface area of the reactants is larger, because more particles are exposed to the other reactant.

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Element x decays radioactively with a half-life of 5 minutes. if there are 700 grams of element x then element X will take 25.6 min to decay 20 grams to the nearest tenth of a min.

Formula of decay

A(t) = A₀e⁻×t

For half-life A(t) = 1/2

placing this value in equation

x = ln2/5

Now putting A(t) = 20, A₀ = 700 and x = ln2/5 in decay formula.

t = 25.6

Half-life, in radioactivity, is the amount of time needed for half of a radioactive sample's atomic nuclei to decay (change spontaneously into other nuclear species by emitting particles and energy), or, alternatively, the amount of time needed for a radioactive material's rate of disintegrations per second to decrease by half.

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Answer:

Copper (IV) Phosphate.

Explanation:

Copper (IV) Phosphate is an inorganic compound consisting of copper in its +4 oxidation state and phosphate anions. It has the chemical formula CuPO₄ and is commonly used as a component in catalysts, pigments, and ceramic materials. The "IV" in its name refers to the oxidation state of copper, which is +4.

If the mass of proton is  1.67 × 10-27 kg, then the mass of proton is Gigagram is [tex]1.67X10^{-33} Gg.[/tex]

Proton is the sub-atomic particle which is present inside the nucleus of the atoms and they are positively charged. Neutrons which are negatively charged and positively charged protons are found in the nucleus of the atoms.

As per the given data in the question:

The mass of the proton is given as 1.67 × 10-27 kg.

For conversion to the gigagrams the following conversion factor is used,

1 Gg=[tex]10^{6}[/tex] kg.

Using the above conversion factor, the mass of proton in Gigagrams is given as [tex]1.67X10^{-33} Kg\\[/tex].

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Atomic orbitals, which reflect the distribution of electrons over two or more atoms, are combined linearly to form molecular orbitals.

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4) The central carbon atom of a new compound is found to be sp2 hybridized. This suggests that a pi bond also involves carbon.

A carbon atom is sp2 hybridized when one s-orbital and two p orbitals bond together. Between the three atoms, there are two single bonds and one double bond.

One "extra" p orbital remains on the atomic center because only three of the four atomic orbitals are used to create the sp2 hybrid orbitals. To form a bond, this p orbital can overlap with other p orbitals nearby.

The only possible molecular geometry for sp2 hybridized central atoms is trigonal planar. The shape is also trigonal planar if all of the bonds are in place. The shape becomes bent if there are only two bonds and one single pair of electrons holding a bond in place.

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Answer:

B. sp2

Explanation:

We see that there is a pi bond between one of the Oxygens when we draw out the Lewis Structure.

pi bonds are every bond other than a single bond. So double and tripple bonds.

To easily understand this, we can write out "sppp" and cross off however many pi bonds (p) there are. In this example we only have 1 pi bond so the hybridization will be sp2.

The number of moles of AgCl(s) formed is 0.80 mol.

The number of moles of AgCl(s) formed when 0.40 mol of NaCl reacts with 0.60 mol of AgNO3 is 0.80 mol. This is because the reaction between NaCl and AgNO3 is a 1:1 molar ratio, meaning that 0.40 mol of NaCl and 0.60 mol of AgNO3 will produce 0.80 mol of AgCl(s).

The balanced chemical equation for this reaction is:

NaCl + AgNO3 → AgCl + NaNO3

This means that for every mole of NaCl that reacts with AgNO3, one mole of AgCl is produced. Thus, if 0.40 mol of NaCl reacts with 0.60 mol of AgNO3, 0.80 mol of AgCl will be formed. This is because the reaction between NaCl and AgNO3 is a 1:1 molar ratio, meaning that 0.40 mol of NaCl and 0.60 mol of AgNO3 will produce 0.80 mol of AgCl(s).

The balanced chemical equation for this reaction is:

NaCl + AgNO3 → AgCl + NaNO3

This means that for every mole of NaCl that reacts with AgNO3, one mole of AgCl is produced. Thus, if 0.40 mol of NaCl reacts with 0.60 mol of AgNO3, 0.80 mol of AgCl will be formed.

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According to the U.S. Green Building Council (USGBC), buildings in the United States are responsible for 39 percent of CO2 emissions, 40 percent of the total energy consumption, and 13 percent of all water consumption.

The U.S. Green Building Council (USGBC) reports that buildings in the United States are responsible for an alarming 39 percent of CO2 emissions, 40 percent of the total energy consumption, and 13 percent of all water consumption.

With the help of advanced mathematical models, we can develop strategies to reduce these figures and create a more sustainable future for our planet.

By investing in maths solutions, we can develop energy efficient buildings, reduce water usage and limit emissions of harmful pollutants. Together, we can create a cleaner and greener future for us all.

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The pH values at which amino acid have the best buffering capacity are 2.34 and 9.69.

The largest buffering capabilities of monoamino monocarboxylic acids are found in the two pH ranges closest to their pK′ values. Buffer capacity refers to the ability of a solution to resist changes in pH which can be either absorbing or desorbing H+ and OH- ions. It is the moles of an acid or base required to change the pH of a solution by 1, divided by the pH change and the volume of buffer in liters. Buffer capacity is a unitless number. When an acid or base is added to a buffer system, the pH change can be small or large which depends on both the initial pH and the capacity of the buffer to resist change in pH. Hence, a buffer resists changes in pH due to the addition of an acid or base though consumption of the buffer.

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Nitrate having a greater bond angle because double bonds take up more space than to the single bonds.

The  O-N-O bond angles greater in the nitrite ion (NC₂⁻) or the nitrate ion (NO₃⁻) having a greater bond angle because double bonds take more space than to the single bonds.

Incase of NO₃ : Nitrogen having five valence electrons and oxygen having two valency whereas O- having one valency. N=O having 1bp and in N-O also having 1bp.

In nitrate, there is a single center atom that is encircled by the three oxygen atoms that have identical bonds to one another and are positioned at the triangle's angles in the same one-dimensional plane. In essence, nitrate contains no lone pairs and three electron domains. As a result, the  NO₃⁻ molecule's are trigonal planar and slightly bent chemical shape. Bond angle is 120 degrees.

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The heart beat fo the cat in 5 minutes if the cats heart can beat 220 times in 2minutes is 550 minutes.

An equation simply has to do with the statement that illustrates the variables given. In this case, it is vital to note that two or more components are considered in order to be able to describe the scenario.

Since the cats heart can beat 220 times in 2minutes nearly twice as fast as a human heart. The heart beat in 5 minutes will be:

= 220 / 2 × 5

= 550 minutes

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Electrolytes have water as a solvent  also electrolytes contain cations and anions. Hence,  both (a) and (b)  .

For an Electrolytes, water is considered as an most important solvent. Electrolytes like  sodium, calcium, potassium, chlorine, phosphate, and magnesium is obtained from the food  we consume and also from your drinking fluids. Electrolyte levels can vary from small or too high in your body. This is dependent upon the change in amount of water by the body.

Hence , an electrolyte is said to have equal numbers of positive and negative ions in solution. Thus ,after applying electric field , the positive ions present are generally move from the direction of the field and the negative ions move opposite the field.

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Answer:

56 protons and 74 neutrons

Explanation:

There are 56 protons and 74 neutrons in an atom of barium-130.

I am pretty sure it's correct, I checked it over a couple of times. If I'm wrong, feel free to correct me!