.

Question 1

Which of the following is a salt?

Answer 1

NaCl

Other options include HNO3, NaNO3, CuO, CH3OH, CaO, NH4NO3, CaCl2, AlCl3, and LiOH.

Question 2

Which of the following salts is soluble?

Answer 2

NaCl, NH4NO3, CaCl2

Other options such as CuO and CH3OH are not soluble.

Question 3

What is the general reaction for preparing a salt from an acid and a metal?

Answer 3

Acid + metal → salt + hydrogen

Question 4

What is the general reaction for preparing a salt from an acid and a metal oxide?

Answer 4

Acid + metal oxide → salt + water

Question 5

What is the general reaction for preparing a salt from an acid and a metal hydroxide?

Answer 5

Acid + metal hydroxide → salt + water

Question 6

What is the general reaction for preparing a salt from an acid and a metal carbonate?

Answer 6

Acid + metal carbonate → salt + water + carbon dioxide

Question 7

Chloride salts are derived from which acid?

Answer 7

Hydrochloric acid

Question 8

Sulfate salts are derived from which acid?

Answer 8

Sulfuric acid

Question 9

Nitrate salts are derived from which acid?

Answer 9

Nitric acid

Question 10

Ethanoate salts are derived from which acid?

Answer 10

Ethanoic acid

Question 11

To prepare NaCl, which acid do we react with Sodium metal?

Answer 11

Hydrochloric acid

Question 12

Which reagents can be used to prepare MgSO4?

Answer 12

Magnesium metal, magnesium oxide, magnesium hydroxide, magnesium carbonate

Question 13

Which reagents can be used to prepare CuSO4?

Answer 13

Copper (II) oxide, copper (II) hydroxide, copper (II) carbonate

Question 14

What is the method of preparing soluble salts?

Answer 14

Titration: acid + alkali → alkali metal salt + water

Question 15

What is the method of preparing insoluble salts?

Answer 15

Precipitation: Mix, filter, wash, dry

Question 16

What is the first step in preparing zinc chloride crystals?

Answer 16

Add excess zinc powder to dilute hydrochloric acid

Question 17

What do we do after adding excess zinc in the preparation of zinc chloride?

Answer 17

Filter the mixture to remove unreacted zinc

Question 18

What is done after filtering the mixture in the preparation of zinc chloride?

Answer 18

Heat the filtrate to partially evaporate water

Question 19

What is the final step in preparing zinc chloride crystals?

Answer 19

Dry between filter papers or in an oven at low temperature

Question 20

What is the reason for adding excess zinc in the preparation of zinc chloride?

Answer 20

To ensure all the acid is used up

Question 21

What is the method of preparing magnesium sulfate crystals starting from magnesium carbonate?

Answer 21

Add excess magnesium carbonate to dilute sulfuric acid

Question 22

What is the final step in the preparation of magnesium sulfate crystals?

Answer 22

Dry between filter papers or in an oven at low temperature

Question 23

What is the method of preparing magnesium nitrate crystals starting from magnesium oxide?

Answer 23

Add excess magnesium oxide to dilute nitric acid

Question 24

What is the required apparatus for preparing soluble salts?

Answer 24

Measuring cylinder, stirring rod, spatula, evaporating dish, beaker, Bunsen burner

Question 25

What is the purpose of using an indicator in titration?

Answer 25

To identify the end point by color change

Question 26

How can NaCl be prepared from its elements?

Answer 26

2Na + Cl2 → 2NaCl

Question 27

What are the steps for preparing K2SO4?

Answer 27

React KOH with H2SO4

Question 28

How can MgSO4 be prepared from its elements?

Answer 28

From reaction of acid with metal, metal oxide, metal hydroxide, metal carbonate

Question 29

How can CuSO4 be prepared?

Answer 29

From reaction of acid with metal oxide, metal hydroxide, metal carbonate

Question 30

What is the first step in preparing an insoluble salt?

Answer 30

Mix two solutions of soluble salts

Question 31

What is the process to prepare CaSO4?

Answer 31

Mix two solutions of soluble salts or a soluble salt and an acid

Question 32

What is the reaction for preparing AgBr?

Answer 32

AgNO3(aq) + KBr(aq) → AgBr(s) + KNO3(aq)

Question 33

What is the formula for calcium sulfate?

Answer 33

CaSO4 ## Footnote Calcium sulfate is an insoluble salt.

Question 34

How can CaSO4 be formed?

Answer 34

By mixing two solutions of soluble salts or a soluble salt and an acid ## Footnote This process is known as precipitation.

Question 35

What is the reaction that produces silver bromide?

Answer 35

AgNO3(aq) + KBr(aq) → AgBr(s) + KNO3(aq) ## Footnote This reaction demonstrates the formation of a precipitate.

Question 36

What is AgBr?

Answer 36

A precipitate formed in the reaction between AgNO3 and KBr ## Footnote AgBr is silver bromide, which is insoluble in water.

Question 37

What ions are involved in the formation of AgBr?

Answer 37

* AgNO3(aq) * KBr(aq) ## Footnote These are the soluble reactants leading to the formation of the insoluble AgBr.

Question 38

What can displace the metal in a salt reaction?

Answer 38

The metal of one salt can displace the metal in the other salt ## Footnote This is a common occurrence in single displacement reactions.

Question 39

Identify two reagents that can be used to replace the metal in a salt.

Answer 39

* CaSO4 * K2SO4 ## Footnote These reagents can be used to perform metal displacement.

Question 40

What elements can replace the metal in a salt according to the text?

Answer 40

* K * Na * H ## Footnote These metals can be used to replace other metals in salts.

Question 41

Which nonmetal can be replaced in a salt reaction?

Answer 41

NO3 ## Footnote Nitrate (NO3) can replace the nonmetal in a salt.

Question 42

What are the soluble salts mentioned in the reactions?

Answer 42

* KBr(aq) * NaBr(aq) * HBr(aq) ## Footnote These salts are soluble in water and are involved in the reactions.

Question 43

True or False: AgNO3 is a soluble salt.

Answer 43

True ## Footnote Silver nitrate (AgNO3) is soluble in water.