Chemical Reactions Vocab Flashcards
(8 cards)
1
Q
Chemical reaction
A
Process in which atoms are rearranged to produce new substances.
2
Q
Chemical equation
A
An expression to show between reactants + products.
3
Q
Reactants
A
Substances that participate in (start) a chemical reaction.
4
Q
Products
A
Substances are 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 reaction with an input of energy.
8
Q
Exothermic reaction
A
Chemical reaction with an output of energy.
