Chemical Formulae and Equations

Question 1

Name the common cations

Answer 1

Hydrogen (Acid), [H]+
Silver, [Ag]+
Zinc, [Zn]2+
Ammonium, [NH]4+

Question 2

Name the common anions

Answer 2

Carbonate, [CO3]2–
Hydroxide, [OH]–
Nitrite, [NO2]–
Nitrate, [NO3]–
Sulfite, [SO3]2–
Sulfate, [SO4]2–
Phosphate, [PO4]3–
Dichromate, [Cr2O7]2–
Permanganate, [MnO4]–

Question 3

Name the acids!!!!!

Answer 3

Hydrochloric acid HCl
Hydrobromic acid HBr
Sulfuric acid H2SO4
Nitric acid HNO3
Carbonic acid H2CO3
Phosphoric acid H3PO4
Sulfurous acid H2SO3
Nitrous acid HNO2

Question 4

Name the formulae for water, ammonia, methane and ethanol

Answer 4

Water, H2O
Ammonia, NH3
Methane, CH4
Ethanol, C2H5OH

Question 5

What terms are used for solid?

Answer 5

powder, ribbon, precipitate (solid salt product), piece, residue

Question 6

What terms are used for aqueous?

Answer 6

solutions, acids, alkalis, dilute, concentrated, suspension

Question 7

What terms are used for liquid?

Answer 7

molten, globules, water

Question 8

What terms are used for gas?

Answer 8

effervescence, bubbles, steam, vapour