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Science retake 1

What is the change in a chemical equation to balance it? What can it be changed Coefficients, subscripts
All chemical reactions release or absorb energy. What is the source of this energy? Breaking of old chemical bonds
When ammonium chloride mixes with water chemical ice packs used for injuries the mixture feels cold. Endothermic
A chemical reaction in which heat energy is released is Exothermic
Each substance on the left side of the arrow in a chemical equation is a Reactant
What type of reactant is shown in the following chemical equation NH3+HCL—>NH4CL Synthesis
What type of reactions does the graphic represent Single replacement
Created by: Hnorthup2