8. What two things can happen to energy in a chemical reaction?

It can either release energy or take in energy.

Explanation:

In an exothermic reaction, the energy is released from the reaction and is typically released through the energy of heat or light.

In an endothermic reaction, the energy is absorbed by the reaction and often results in the chemical reaction becoming cold.

ever thing that stae as enegry

Explanation:

All chemical reactions involve energy. Energy is used to break bonds in reactants, and energy is released when new bonds form in products. Endothermic reactions absorb energy, and exothermic reactions release energy. The law of conservation of energy states that matter cannot be created or destroyed.

calculate how many grams of ammonia can be produced from 4.21 grams of

n2 + 3h2 = 2nh3

my answer:

25.0g n2 x (1 mol/ 28.0gn2) x (2 mol nh3/ 1 mol n2) x (17.0g nh3/ 1 molnh3) = 30.36g n2

25.0g h2 x (1 mol h2/ 2.00g h2) x (2 mol nh3/ 3 mol h2) x (17.0g nh3/ 1 mol nh3) = 141.67g h2

lr = n2

2b2t

explanation:

2b2t