Chemical Reactions Flashcards
(9 cards)
1
Q
Chemical reaction
A
A process in which atoms are rearranged to form new substances.
2
Q
Chemical equation
A
Expression to show the relationship between reactants + products.
3
Q
Reactant
A
Substances that participate in (start) a chemical reaction.
4
Q
Products
A
Substances that 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 a chemical equation.
7
Q
Endothermic reaction
A
Chemical reaction with an input of energy.
8
Q
Exothermic reaction
A
Reaction with an output of energy.
9
Q
A
