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3 years ago

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NO(g)+O3(g)⇌NO2(g)+O2(g) The reaction is first order in O3 and second order overall. What is the rate law? View Available Hint(s

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1 answer:

Ivanshal [37]3 years ago

3 0

NO(g)+O3(g)⇌NO2(g)+O2(g)

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Which of the reactions are spontaneous (favorable)? A. DHAP↽−−⇀glyceraldehyde-3-phosphateΔ????=3.8 kJ/mol B. C2H4+H2−→−−Rh(I)C2H

dalvyx [7]

Answer:

The spontaneous reactions are:

B. $C_{2}H_{4} + H_{2} \overset{Rh(I)}{\rightarrow}C_{2}H_{6}$ ; <u>ΔG= −150.97 kJ/mol </u>

D. C₆H₁₃O₉P + ATP ⟶ C₆H₁₄O₁₂P₂ + ADP; <u>ΔG = −14.2 kJ/mol </u>

Explanation:

Gibbs free energy , denoted by ΔG, is the <u>quantitative measure of the favorability or spontaneity</u> of a given process or chemical reaction that is carried out at constant temperature (T) and pressure (P).

Therefore, Gibbs free energy in J: ΔG = ΔH - TΔS

Here, ΔH is the change in enthalpy and ΔS is the change in the entropy

For a given chemical reaction to be <u>spontaneous or favorable</u>, ΔG should be negative (ΔG < 0).

A. DHAP ⇌ glyceraldehyde-3-phosphate ; <u>ΔG = 3.8 kJ/mol </u>

<u>The value of ΔG is positive (ΔG > 0). Therefore, this reaction is not spontaneous.</u>

B. $C_{2}H_{4} + H_{2} \overset{Rh(I)}{\rightarrow}C_{2}H_{6}$ ; <u>ΔG= −150.97 kJ/mol </u>

<u>The value of ΔG is negative (ΔG < 0). Therefore, this reaction is spontaneous.</u>

<u />

C. glutamate + NAD⁺ + H₂O ⟶ NH⁴⁺ +α-ketoglutarate + NADH + H⁺ ; <u>ΔG = 3.7 kcal/mol </u>

<u>The value of ΔG is positive (ΔG > 0). Therefore, this reaction is not spontaneous.</u>

<u />

D. C₆H₁₃O₉P + ATP ⟶ C₆H₁₄O₁₂P₂ + ADP; <u>ΔG = −14.2 kJ/mol </u>

<u>The value of ΔG is negative (ΔG < 0). Therefore, this reaction is spontaneous.</u>

<u />

E. L -malate + NAD⁺ ⟶ oxaloacetate + NADH + H⁺; <u>ΔG = 29.7 kJ/mol </u>

<u>The value of ΔG is positive (ΔG > 0). Therefore, this reaction is not spontaneous.</u>

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3 years ago

The electrons in an atom's outermost energy level are called: Electron dots. Quantum electrons. Valence electrons. Noble-gas ele

Flauer [41]

The valence electrons are located in an atom's outermost energy level

<h3>Further explanation </h3>

In an atom, there are levels of energy in the shell and subshell

This energy level is expressed in the form of electron configurations.

Electrons fill the orbitals based on the Aufbau principle, namely the filling of electrons starts from the lowest energy level

Electron dots

Usually used in describing Lewis structures, placed around the element

Quantum electrons

Each orbital in an atom consists of 4 quantum numbers : n, l, ml, ms

Each electron has a different quantum number and this conforms to Pauli's rule: no electrons have the same 4 quantum numbers

Valence electrons

Valence electrons are electrons used in a chemical bond , and in an atom's outermost energy level

Noble-gas electrons

Noble gas has a stable electron configuration of 8 valence electrons which guides the formation of chemical bonds called the octet rule

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3 years ago

Common salt besides being used in kitchen can also be used as the raw material for making.

Anon25 [30]

Common salt besides being used in kitchen can also be used as the raw material for making washing soda and baking soda.

The overall balanced reaction for washing soda preparation:

2NaCl + CaCO3 → Na2CO3 + CaCl2

NaCl is sodium chloride or common salt

Na2CO3 is sodium carbonate or washing soda

CaCO3 is calcium carbonate or limestone

The overall balanced reaction for baking soda preparation:

NaCl + CO2 + NH3 + H2O → NaHCO3 + NH4Cl

Baking soda (NaHCO₃ - sodium bicarbonate) is white, solid, crystalline salt or appears as a fine powder.

NH3 is ammonia

CO2 is carbon (II) oxide

More about baking soda: brainly.com/question/20628766

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1 year ago

Help! Pls tell me the meanings of all of these words and please try to make them short as possible!!! tysm have a great day! &lt

Alex Ar [27]

Answer:

Biofuel: Fuel from living matter

Conservertion of energy: It's a law where energy, when bodies/particles touch in a close system stays constant.

Conduction: Where via touch heat/electricity travels to a diffrent thing.

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3 years ago

Why dont we include the mass of an atoms electrons in the atomic mass?

Oxana [17]

<span>Because protons and neutrons are so much more massive than electrons, almost all of the atomic mass in any atom comes from the nucleus, which contains all of the neutrons and protons.</span>

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3 years ago