Which of the following forms of energy is released or absorbed in most chemical reactions? A. light energy
B. electrical energy
C. sound energy
D. heat energy

Which statement is true about this reaction? 14n+1h 15o it is a practical source of energy on earth. it occurs only outside the solar system. its product is heavier than each of its reactants. it shows the critical mass of an element.

Avariable that is not being directly tested during an experiment should be

How do you determine the percent yield of a chemical reaction