CHEMICAL FORMULA and Its empirical formula

it is writing a chemical formula and empirical formula.

1. CHEMICAL FORMULA

2. H 2 2=H 1=O 2:1 H 2 O FORMULA= Nacl Subscript=H 2 O Parenthesis= aluminum sulfate Al 2 (SO 4 ) 3= 2=al,3 sulfate group

3. Empirical formula 1. Hydrogen peroxide= H 2 O 2 2=h, 2=o 2:2 or 1:1 ratio HO empirical formula 2. Hydrazine (rocket fuel) N 2 H 4 2=N,,4=H 1:2 ratio NH2 empirical formula

4. Chemical symbols Carbon=Ca Bromine=Br Barium= Ba Cobalt-Co Carbon monoxide=Co

5. Chemical formula/s H 2 O Fe 2 O 3 Nacl =sodium chloride(table salt) C O 2 =carbon di oxide=respiratory gas in breath

6. Chemical equation =reactants & product REACTANTS=appears b4 the arrow Product=after arrow head Coefficients=before the elements, eg : 8 CO 2