Chem Module 1

Question 1

Solubility rules: salts of alkali metals (group 1)

Answer 1

all soluble regardless of non-metal element

Question 2

Solubility rules: Ammonium

Answer 2

all soluble regardless of non-metal element

Question 3

Solubility rules: Nitrates

Answer 3

all soluble regardless of metal element

Question 4

Solubility rules: Chlorides, bromides, iodides

Answer 4

all soluble except when bonded to
- lead
- mercury
- silver

Question 5

Solubility rules: sulfates

Answer 5

all soluble except when bonded to
- calcium
- strontium
- barium
- silver
- mercury
- lead

Question 6

Solubility rules: carbonates, phosphates, sulfides

Answer 6

all INSOLUBLE except when bonded to alkali metals

Question 7

Solubility rules: Hydroxides

Answer 7

are INSOLUBLE /slightly soluble except hydroxide of alkali/alkali earth metals

Question 8

Common strong binary acids

Answer 8

• HCI
• HBr
  -HI

Question 9

What binary acid is not strong

Answer 9

HF

Question 10

Strong oxo acids

Answer 10

• HClO4 (perchloric acid)
• HBrO4 (perbromic acid)
• HIO4 (periodic acid)
• H2SO4 (sulfuric acid)
• HNO3 (nitric acid)

Question 11

Common strong bases..

Answer 11

• group 1 hydroxides
• group 2 hydroxides
• hydride and oxide ions