Acids

Question 1

1a

Answer 1

H+

Question 2

1aii

Answer 2

OH-

Question 3

1b

Answer 3

ethanoic acid would have a higher pH than hydrochloric acid. Hydrochloric acid would be a darker red compared to ethanoic acid which would have a lighter colour

Question 4

1c

Answer 4

completely

Question 5

3a

Answer 5

5

Question 6

3b

Answer 6

H+ + OH- -> H20

Question 7

5II

Answer 7

Universal indicator
pH meter

Question 8

balance NaOH + H2S04 -> Na2SO4 + H2O

Answer 8

2NaOH + H2SO4 -> NA2SO4 + 2H20

Question 9

whats MgCO3 + H2SO4

Answer 9

MgCO3 + H2SO4 -> MgSO4 + H20 + CO2

Question 10

ZnO + HNO3

Answer 10

ZnO + 2HNO3 -> Zn(NO3)2 + H20

Question 11

Ca + HCl

Answer 11

Ca + 2HCl -> Cacl2 + H2

Question 12

LiOH + CH3COOH

Answer 12

LiOH +CH3COOH -> CH3COOLi + H20

Question 13

experimenr

Answer 13

add sulfuric acid to a beaker
then add excess MgO using a spatula to ensure all the acid reacts
heat and stir to ensure a complete reaction and all the reactants mix
filter using filter funnel to remove excess base
heat gently using water bath and bunsen to evaporate water which leaves the crystals
pat it dry to remove any additional water

Question 14

potassium hydroxide and hydrochloric acid mix what are products

Answer 14

potassium chloride + water

Question 15

sodium sulfate, water and carbon dioxide are produced what are reactants

Answer 15

sulfuric acid + sodium carbonate

Question 16

hydrogen and magnesium nitrate are produced what are reactants

Answer 16

nitric acid + magnesium

Question 17

sulfuric acid + calcium oxide are reactants what are products

Answer 17

calcium sulfate + water