Symbol of Element
Hydrogen
H
Sn
Tin
NaCl
Sodium Chloride
States that the matter cannot be created or destroyed in ordinary chemical or physical changes
Law of conservation of matter
For many substances, this single unit is a
Molecule
Iron
Fe
Ca
Calcium
H20
The process in which atoms are rearranged to produce different substances
How many atoms of oxygen are in (SO4)3
12
Gold
Au
Ba
Barium
H2SO4
Sulfuric Acid
A combination of chemical symbols and numbers that is used to represent a single unit of a substance is known as
Chemical Formula
2H2 + O2 =
Hafnium
Hf
Ni
Nickel
N20
Nitrous Oxide
The original substance or substances in a chemical reaction are called
Reactants
H2 + CL2 =
Antimony
Sb
Zn
Zinc
NO2-
Nitrite
The substance or substances that form in a chemical reaction are called
Products
What is the one product of photosynthesis?