acids bases salts oxides

Question 1

def acid

Answer 1

a substance which produces H+ ions when dissolved in water

Question 2

properties of acids (texture, taste, ph, conductivity)

Answer 2

corrosive, sour, 0>x>7, conducts electricity

Question 3

solubility table: group I and ammonium salts

Answer 3

all soluble

Question 4

solubility table: nitrate salts

Answer 4

all soluble

Question 5

solubility table: sulfate salts

Answer 5

all soluble except lead. barium, calcium

Question 6

solubility table: halide salts (group 7)

Answer 6

all soluble except silver, lead

Question 7

solubility table: carbonate salts

Answer 7

all insoluble except sodium, potassium, ammonium

Question 8

solubility table: hydroxide salts

Answer 8

all insoluble except sodium, potassium, ammonium

Question 9

test for h2 gas

Answer 9

colourless, odourless hydrogen gas extinguishes a lighted splint with a “pop” sound

Question 10

test for co2 gas

Answer 10

colourless, odourless carbon dioxide gas forms a white precipitate when bubbled into limewater

Question 11

def base

Answer 11

a substance which reacts with acid to give out salt and water

Question 12

def alkali

Answer 12

a base soluble in water

Question 13

properties of alkalis (texture, taste, ph, conductivity)

Answer 13

corrosive, bitter, soapy, 7>x>14, turns moist red litmus paper blue, dissolves in water to form solutions which can conduct electricity

Question 14

test for nh3 gas

Answer 14

colourless, pungent ammonia gas turns most red litmus blue

Question 15

strong acid vs weak acid (conductivity)

Answer 15

strong acids conduct electricity better than weak acids

Question 16

strong acid vs weak acid (molecules)

Answer 16

strong: exists as ions
weak: exists as molecules

Question 17

salt prep: both soluble

Answer 17

titration

Question 18

salt prep: 1 soluble

Answer 18

excess reactant method

Question 19

salt prep: insoluble

Answer 19

precipitation

Question 20

def acidic oxides (reaction with water, alkali)

Answer 20

non-metallic oxide
reacts w water to form an acid
reacts w alkali to form salt and water

Question 21

eg of acidic oxides

Answer 21

sulfur dioxide, sulfur trioxide, nitrogen dioxide

Question 22

def basic oxides (reaction with acid)

Answer 22

metallic oxide
forms an alkaline solution is soluble in water
reacts w acid to form a salt and water only

Question 23

eg of basic oxides

Answer 23

potassium oxide, sodium oxide, copper oxide

Question 24

def amphoteric oxides (reaction w acid, alkali)

Answer 24

metallic oxide which shows acidic and basic properties

reacts w acid/alkali to form a salt and water

Question 25

eg of amphoteric oxides

Answer 25

lead oxide, zinc oxide, tin oxide

Question 26

def neutral oxides (reaction w acid, alkali)

Answer 26

non-metallic oxide, neither acidic or basic

does not react w acid/alkali

Question 27

eg of neutral oxides

Answer 27

carbon monoxide, nitrogen monoxide, dihydrogen monoxide