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
Expression to show the relationship between reactants & 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
Coefficients
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!
