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3 years ago

From the pictures above, how many processes would have NO EFFECT on the temperature of a room?

Chemistry

1 answer:

zmey [24]3 years ago

8 0

Answer:

b, talking generates no heat and doesn't take away heat

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The equilibrium constant for the reaction NO2(g)+NO3(g)→N2O5(g) is 2.1x10-20 , therefore: a. At equilibrium, the concentration

frutty [35]

Answer: c. At equilibrium, the concentration of reactants is greater than the products

Explanation:

Equilibrium constant for a reaction is the ratio of concentration of products to the concentration of reactants each raised to the power its stoichiometric coefficients.

For the reaction:

$NO_2(g)+NO_3(g)\rightleftharpoons N_2O_5(g)$

Equilibrium constant is given as:

$K_{eq}=\frac{[N_2O_5]}{[NO_2]\times [NO_3]}$

$2.1\times 10^{-20}=\frac{[N_2O_5]}{[NO_2]\times [NO_3]}$

When

a) K > 1, the concentration of products is greater than the concentration of reactants

b) K < 1, the concentration of reactants is greater than the concentration of products

c) K= 1, the reaction is at equilibrium, the concentration of reactants is equal to the concentration of products

Thus as $K_{eq}$ is $2.1\times 10^{-20}$ which is less than 1,

the concentration of reactants is greater than the concentration of products

3 0

4 years ago

6CO2 + 6H20 + Energy

nata0808 [166]

Answer:

The correct answer is d. 6H20 + 6CO2 the reactant in the chemical reaction 6H2O + 6CO2 ---> C6H12O6 + 6O2 is 6H20 + 6CO2. Remember that the reactant is always at the left side of the equation. So the correct answer is 6H20 + 6CO2 since it's in the left of the equation. I hope this answer helped you.

7 0

3 years ago

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I NEED HELP AS SOON AS POSSIBLE PLEEAAASSE ITS NOT AS BAD AS IT LOOKS I PROMISE ITS PHYSICAL AND CHEMICAL CHANGE

madam [21]

The original change is chemical, affecting the main colorant because of temperature. Paint, is a surface change, not changing anything about the leaf itself, but showing a different color to your eye.

8 0

3 years ago

What is the forward rate with continuous compounding for a three-month period starting in one year?

Tamiku [17]

Answer:8.7%

Explanation:

5 0

2 years ago

A physical change is change

HACTEHA [7]

Answer:

The answer is D

Explanation:

All the other options are associated with chemical change

3 0

3 years ago

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