Chemical reactions 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 the relationship between reactants + products
3
Q
Reatants
A
Substances that participate in (start) a chemical reaction
4
Q
Product
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 of an equation
7
Q
Exothermic reaction
A
Chemical reaction with an output of energy
8
Q
Endothermic reaction
A
Chemical reaction within input of energy
