Chemical Reactions Flashcards
1
Q
Chemical reaction-
A
Process to rearrange atoms into new substances
2
Q
Chemical formula-
A
Chemical symbols and numbers to represent a substance
3
Q
Chemical equation-
A
Expression to show the relationship between the reactants+ products
4
Q
Reactant-
A
Substances that participate in a chemical reaction (start)
5
Q
Product-
A
Substances formed into a chemical reaction (end)
6
Q
Law of conservation of mass-
A
Mass cannot be created or destroyed
7
Q
Law of conservation of energy-
A
energy cannot be created or destroyed
8
Q
Endothermic reaction-
A
Reaction with an imput of energy (photosynthesis)
9
Q
Extorhemis reaction-
A
Reaction with an out put of energy (heat from a burning candle)
