How many Joules of heat energy are released when 38. grams of water are cooled from 174.°C to 112°C

In a popular classroom demonstration, solid sodium is added to liquid water and reacts to produce hydrogen gas and aqueous sodium hydroxide. part a write a balanced chemical equation for this reaction. express your answer as a chemical equation. identify all of the phases in your answer.

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:

In an exothermic reaction, energy may be released to the surroundings in the form of question 4 options: heat light thermal all of the above