Chemical Reactions Flashcards
1
Q
Chemical reaction
A
Process in which atoms are rearranged to produce new substances
2
Q
Chemical equation
A
Expression to show the relationship between reactants and products
3
Q
Reactants
A
The substances that participate in (start) a chemical reaction
4
Q
Products
A
The substances formed in a chemical reaction
5
Q
Law of conservation of mass
A
Matter cannot be created or destroyed
6
Q
Coefficient
A
Number in front of a chemical formula can change to balance an equation
7
Q
Endothermic reaction
A
Chemical formula with an input of energy
8
Q
Exothermic reaction
A
Chemical reaction with an output of energy
