Chemistry Year 10 Mocks Neutralisation

Question 1

What is the pH for acids

Answer 1

Lower than 7

Question 2

What is the pH for alkalis

Answer 2

Greater than 7

Question 3

What’s the definition of neutralisation

Answer 3

When an acid reacts with an alkali to form salt and water.

Question 4

When we use the following acids name the salt that is formed
Hydrochloric Acid
Sulfuric Acid
Nitric Acid

Answer 4

Chloride
Sulfate
Nitrate

Question 5

Are the following hydroxides and oxides a base of an alkali
Sodium hydroxide
Calcium oxide
Magnesium hydroxide
Lithium oxide
Copper oxide

Answer 5

Sodium hydroxide - a base and an alkali
Calcium oxide - a base
Magnesium hydroxide - a base and an alkali
Lithium oxide - a base
Copper oxide - a base

Question 6

What is the first form of neutralisation in everyday life

Answer 6

Brushing your teeth - using toothpaste helps to neutralises the acid and prevents tooth decay as it’s an alkaline

Question 7

What is the second form of neutralisation in everyday life

Answer 7

Treating bee stings - bee stings are acidic and can be treated using an alkaline, e.g. Baking powder

Question 8

What is the third form of neutralisation in everyday life

Answer 8

Treating wasp stings - they are alkaline, so vinegar can cure them as it is acidic

Question 9

What is the fourth form of neutralisation in everyday life

Answer 9

Acidic soil - plants don’t grow well in acidic soil, we treat this soil with like fertilisers e.g. Limestone to neutralise it

Question 10

Acid + metal —>

Answer 10

Salt + hydrogen

Question 11

Acid + alkali —>

Answer 11

Salt + water

Question 12

Acid + base —>

Answer 12

Salt + water

Question 13

Calcium carbonate would form what salt in hydrochloric acid
sulfuric acid
nitric acid

Answer 13

Calcium chloride
Calcium sulfate
Calcium nitrate

Question 14

Sodium hydroxide would form what salt in hydrochloric acid
sulfuric acid
nitric acid

Answer 14

Sodium chloride
Sodium sulfate
Sodium nitrate

Question 15

Magnesium would form what salt in hydrochloric acid
sulfuric acid
nitric acid

Answer 15

Magnesium chloride
Magnesium sulfate
Magnesium nitrate

Question 16

Potassium hydroxide + sulfuric acid —>

Answer 16

Potassium sulfate + water

Question 17

Hydrochloric acid + sodium oxide

Answer 17

Sodium chloride + water

Question 18

Sulfuric acid + copper carbonate —>

Answer 18

Copper sulfate + water + carbon dioxide

Question 19

Nitric acid + zinc —>

Answer 19

Hydrogen + zinc nitrate

Question 20

Copper oxide + sulfuric acid —>

Answer 20

copper sulfate + water

Question 21

Sodium hydroxide + hydrochloric acid —>

Answer 21

Sodium chloride + water

Question 22

What is the symbolised equation for sodium hydroxide + hydrochloric acid —> sodium chloride + water

Answer 22

Na OH + HCI —> NaLI + H2O

Question 23

What type of chemical is copper oxide

Answer 23

Base

Question 24

Iron carbonate + nitric acid —>

Answer 24

Iron nitrate + water + carbon dioxide

Question 25

Iron + hydrochloric acid —>

Answer 25

Iron chloride + hydrogen

Question 26

………………+………………—-> copper sulfate + water + carbon dioxide

Answer 26

………………+………………—-> copper sulfate + water + carbon dioxide

Question 27

Hydrochloric acid +…………..—> lead chloride +…….

Answer 27

Hydrochloric acid + lead hydroxide —> lead chloride + water

Question 28

What is a neutralisation reaction

Answer 28

A neutralisation reaction is where an acid reacts with an alkali to produce a neutral solution of a salt and water. Acid + alkali —–> salt + water

Question 29

What is he definition of an Alkali

Answer 29

Alkalis are soluble metal hydroxides e.g. sodium hydroxide, calcium hydroxide and potassium hydroxide

Question 30

Give an example of a neutralisation reaction

Answer 30

hydrochloric acid + sodium hydroxide → sodium chloride + water

Question 31

The name of a salt has two parts, where do they come from

Answer 31

The first part comes from the metal found in the alkali. The second part comes from the acid used to make the salt.

Question 32

What is a base

Answer 32

Bases are substances that react with acids and neutralise them Acid + base —> salt + water

Question 33

What materials are usually bases

Answer 33

Metal oxides, metal hydroxides, metal carbonates or metal hydrogen carbonates

Question 34

Many bases are what

Answer 34

Insoluble - they do not dissolve in water

Question 35

If a base dissolves in water we call it a what

Answer 35

An alkali

Question 36

Is copper oxide a base or an alkali, explain your answer

Answer 36

Copper oxide is a base because it will react with acids and neutralise them, but it is not an alkali because it does not dissolve in water.

Question 37

Is sodium hydroxide a base or an alkali, explain your answer

Answer 37

Sodium hydroxide is a base because it will react with acids and neutralise them. It’s also an alkali because it dissolves in water.

Question 38

What types of alkalis are bases

Answer 38

All alkalis are bases, but only soluble bases are alkalis. Therefore an alkali and a base both react with acid to give a salt and water

Question 39

An acid reacts with a metal to form what

Answer 39

A salt and hydrogen

Question 40

Give an example of a reaction between acid and metal

Answer 40

Magnesium + hydrochloride acid —> magnesium chloride + hydrogen

Question 41

Metal carbonates react with acids to form what

Answer 41

A salt, water and carbon dioxide

Question 42

Reaction of acid and metal carbonate: Acid + metal carbonate —>

Answer 42

Salt + water + carbon dioxide

Question 43

Give an example of a exactions between a metal carbonate and acid: Hydrochloric acid + calcium carbonate —>

Answer 43

Calcium chloride + water + carbon dioxide

Question 44

What is an indicator

Answer 44

An indicator is a substance or mixture of substances that when added to the solution gives a different colour depending on the pH of the solution.

Question 45

What is universal indicator

Answer 45

Universal indicator is a mixture of several different indicators. Unlike litmus, universal indicator can show us exactly how strongly acidic or alkaline a solution is. This is measured using the pH scale.

Question 46

What is indigestion

Answer 46

Indigestion, also known as dyspepsia, is pain or discomfort in your chest or stomach.

Question 47

When do people usually experience indigestion

Answer 47

Soon after eating or drinking.

Question 48

What are some symptoms of indigestion

Answer 48

Feeling full or bloated Heartburn Nausea (feeling sick) Belching

Question 49

Indigestion is a common what

Answer 49

Indigestion is a common problem that affects many people, but in most cases it is mild and only occurs occasionally.

Question 50

How is indigestion caused//why does it happen

Answer 50

Indigestion is caused by stomach acid coming into contact with the sensitive, protective lining of the digestive system. The stomach acid breaks down the lining, leading to irritation and inflammation.

Question 51

Explain treating indigestion at home

Answer 51

You may be able to treat your indigestion with changes to your diet and lifestyle, or with a number of different medications, such as antacids.

Question 52

What is heartburn caused by

Answer 52

When the acid from the stomach acid and contents rise into the oesophagus

Question 53

What is the definition of a hypothesis

Answer 53

A prediction of what you think is going to happen in the reaction

Question 54

What is the definition of an independent variable

Answer 54

What you are going to change

Question 55

What is the definition of a dependent variable

Answer 55

What you are going to measure

Question 56

What is the definition of a controlled variable

Answer 56

What you will keep the same