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TiliK225 [7]
4 years ago
11

What happens in a chemical reaction?

Chemistry
1 answer:
Neko [114]4 years ago
4 0
The last answer is correct - Bonds of reactants are broken and new ones form to make the products.
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ΑC2H6O+βO2 → γC2H4O2+δH2O
olga2289 [7]
Balancing the equation, we get:

2C₂H₆O + O₂ → 2C₂H₄O₂ + 2H₂O

So 
α = 2
β = 1
γ = 2
δ = 2
4 0
3 years ago
For the reaction of oxygen and nitrogen to form nitric oxide, consider the following thermodynamic data: ΔH∘rxn 180.5 kJ/mol ΔS∘
nasty-shy [4]

Answer:

7.28 × 10³ K

Explanation:

Let's consider the following reaction.

N₂(g) + O₂(g) → 2 NO(g)

The reaction is spontaneous when the standard Gibbs free energy (ΔG°) is negative. ΔG° is related to the standard enthalpy of the reaction (ΔH°) and the standard entropy of the reaction (ΔS°) through the following expression.

ΔG° = ΔH° - T . ΔS°

If ΔG° < 0,

ΔH° - T . ΔS° < 0

ΔH° < T . ΔS°

T > ΔH°/ΔS° = (180.5 × 10³ J/mol)/(24.8 J/mol.K) = 7.28 × 10³ K

The reaction is spontaneous above 7.28 × 10³ K.

7 0
4 years ago
9. A student is dissolving sugar in water. What can
pychu [463]

Answer:

D

Explanation:

Sugar will dissolve faster when you stir the solution quickly because the act of stirring increases kinetic energy which increases the temperature.

4 0
3 years ago
Read 2 more answers
PLEASE HELP!!!! WILL GIVE BRAINLIEST!!!!!<br><br><br><br><br> Is this the only option?
Marta_Voda [28]
I think the first one applys. I may be wrong.
7 0
3 years ago
A compound that present in many foods has the formula c44h86o8np. to which class of molecules does this compound belong? explain
Semmy [17]

Answer : Lipids.

Explanation : The compound molecule of C_{44}H_{86}O_{8}NP is a compound called as MMPE. MMPE stands for monomethylphosphatidylethanolamine. It belongs to the class of lipids and is widely present in many food.

3 0
4 years ago
Read 2 more answers
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