{{asɛmtiNe Ɔkyerɛwfo}} | Nhomakorabea | Nneɛma a ɛma wotumi yɛ ade

1

What chemical property do all acids have in common?

They all react with metals in neutralisation reactions

They all react with acids in combustion reactions

They all react with alkalis in decomposition reactions

They all react with alkalis in neutralisation reactions

1

What colour does litmus paper turn in an acidic solution?

Red

Blue

Green

White

1

What colour does litmus paper turn in an alkali solution?

Red

Blue

Green

White

1

Which solutions are hazardous? (You can pick more than one answer)

Weakly acidic solutions

Strongly acidic solutions

Weakly alkaline solutions

Strongly alkaline solutions

1

Universal indicator measures the ___________ of a solution.

1

What does a pH value of less than 7 mean?

Solution is acidic

Solution is neutral

Solution is alkaline

1

What does a pH value of 7 mean?

Solution is acidic

Solution is neutral

Solution is alkaline

1

What does a pH value of greater than 7 mean?

Solution is acidic

Solution is neutral

Solution is alkaline

1

Hydrochloric acid is very acidic. What pH will it have?

0-2

3-6

8-11

12-14

1

If a solution is labelled "corrosive", what does this mean?

It can cause chemical burns

It is flammable

It can cause respiratory issues

It can cause eye irritation

1

What type of bases can form alkaline solutions?

Soluble bases

Insoluble bases

1

What is a neutralisation reaction?

A reaction between an acid and a base that produces a hydrogen and water

A reaction between an acid and a metal that produces a salt and water

A reaction between an acid and a base that produces a salt and water

A reaction between an acid and a base that produces a salt and hydrogen

1

What happens to the pH of an acidic solution if it is neutralised?

It changes from pH 7 to below pH 7

It changes from below pH 7 to pH 7

It changes from above pH 7 to pH 7

It changes from pH 7 to above pH 7

1

_________ rain can cause damage to plants, animals and buildings

1

How does the pH of acid rain compare to the pH of normal rain?

pH is the same as normal rain

pH is lower (more acidic)

pH is lower (more alkaline)

pH is higher (more alkaline)

1

What two gaseous pollutants cause acid rain? (Pick 2 boxes)

Sulphur dioxide

Nitrogen monoxide

Carbon monoxide

Carbon dioxide

1

_____________ bases react with acids to produce carbon dioxide gas.

1

What is produced when a metal reacts with an acidic solution? (You can pick more than one box)

Salt

Water

Oxygen

Hydrogen

1

If a lit splint goes out with a squeaky pop, what gas is present?

Hydrogen

Oxygen

Carbon dioxide

Chlorine

1

What acid can form metal sulphate salts when it reacts?

Citric acid

Nitric acid

Hydrochloric acid

Sulphuric acid

1

What acid can form metal chloride salts when it reacts?

Citric acid

Nitric acid

Hydrochloric acid

Sulphuric acid

1

What acid can form metal nitrate salts when it reacts?

Citric acid

Nitric acid

Hydrochloric acid

Sulphuric acid

1

What is the chemical formula of nitric acid?

HNO3

H2SO4

1

What is the chemical formula of sulphuric acid?

HNO3

H2SO4

Acids, bases, and alkalis are substances that can react in chemical reactions.

Ɛhia

1

What is the name of the reaction between an acid and a base?

Ɛhia

3

Match up words to their correct definitions.

Draggable item		Corresponding Item
Alkali		A substance which reacts with a base in a neutralisation reaction.
Base		Soluble bases which dissolve in water.
Acid		Any substance that reacts with an acid.

Ɛhia

2

The pH scale measures how acidic or alkaline a solution is. pH can be measured using universal indicator.

Ɛhia

3

Ɛhia

1

Universal indicator can be used to test if neutralisation reactions have occurred.
An acid is tested with universal indicator before and after a neutralisation reaction.
What colour change would be seen?

Ɛhia

1

pH is measured on a scale that works in two directions.
How much more alkaline is pH 12 than pH 9?

Ɛhia

1

Acids react with some metals to form two products.

Ɛhia

3

Complete the word equations for the below reactions between metals and acids.

Aluminium + Sulphuric acid → +

Sodium + Nitric acid → +

Ɛhia

2

When acids react with some metals, bubbles can be observed.
Lena wanted to test if the bubbles that she observed during a chemical reaction contained hydrogen gas.
Describe what Lena could do to test if the gas produced by the chemical reaction is hydrogen.

Cars are one of the sources of pollutants on Earth.

Ɛhia

2

null

Name the primary and secondary pollutants of the example above.

Primary pollutant:

Secondary pollutant:

Ɛhia

6

Explain how a car releasing nitrogen monoxide in one country can cause acid rain damage to a forest in a different country.
- include how the pollutant in acid rain is formed.
- describe the pollutants and sources that can cause acid rain.

C09 EOTT - How do acids react?

C09 EOTT - How do acids react?

What chemical property do all acids have in common?

What colour does litmus paper turn in an acidic solution?

What colour does litmus paper turn in an alkali solution?

Which solutions are hazardous? (You can pick more than one answer)

Universal indicator measures the ___________ of a solution.

What does a pH value of less than 7 mean?

What does a pH value of 7 mean?

What does a pH value of greater than 7 mean?

Hydrochloric acid is very acidic. What pH will it have?

If a solution is labelled "corrosive", what does this mean?

What type of bases can form alkaline solutions?

What is a neutralisation reaction?

What happens to the pH of an acidic solution if it is neutralised?

_________ rain can cause damage to plants, animals and buildings

How does the pH of acid rain compare to the pH of normal rain?

What two gaseous pollutants cause acid rain? (Pick 2 boxes)

_____________ bases react with acids to produce carbon dioxide gas.

What is produced when a metal reacts with an acidic solution? (You can pick more than one box)

If a lit splint goes out with a squeaky pop, what gas is present?

What acid can form metal sulphate salts when it reacts?

What acid can form metal chloride salts when it reacts?

What acid can form metal nitrate salts when it reacts?

What is the chemical formula of nitric acid?

What is the chemical formula of sulphuric acid?

What is the name of the reaction between an acid and a base?

Match up words to their correct definitions.

Universal indicator can be used to test if neutralisation reactions have occurred.An acid is tested with universal indicator before and after a neutralisation reaction.What colour change would be seen?

pH is measured on a scale that works in two directions.How much more alkaline is pH 12 than pH 9?

When acids react with some metals, bubbles can be observed.Lena wanted to test if the bubbles that she observed during a chemical reaction contained hydrogen gas.Describe what Lena could do to test if the gas produced by the chemical reaction is hydrogen.

Explain how a car releasing nitrogen monoxide in one country can cause acid rain damage to a forest in a different country.- include how the pollutant in acid rain is formed.- describe the pollutants and sources that can cause acid rain.

What chemical property do all acids have in common?

What colour does litmus paper turn in an acidic solution?

What colour does litmus paper turn in an alkali solution?

Which solutions are hazardous? (You can pick more than one answer)

Universal indicator measures the ___________ of a solution.

What does a pH value of less than 7 mean?

What does a pH value of 7 mean?

What does a pH value of greater than 7 mean?

Hydrochloric acid is very acidic. What pH will it have?

If a solution is labelled "corrosive", what does this mean?

What type of bases can form alkaline solutions?

What is a neutralisation reaction?

What happens to the pH of an acidic solution if it is neutralised?

_________ rain can cause damage to plants, animals and buildings

How does the pH of acid rain compare to the pH of normal rain?

What two gaseous pollutants cause acid rain? (Pick 2 boxes)

_____________ bases react with acids to produce carbon dioxide gas.

What is produced when a metal reacts with an acidic solution? (You can pick more than one box)

If a lit splint goes out with a squeaky pop, what gas is present?

What acid can form metal sulphate salts when it reacts?

What acid can form metal chloride salts when it reacts?

What acid can form metal nitrate salts when it reacts?

What is the chemical formula of nitric acid?

What is the chemical formula of sulphuric acid?

What is the name of the reaction between an acid and a base?

Match up words to their correct definitions.

Universal indicator can be used to test if neutralisation reactions have occurred.An acid is tested with universal indicator before and after a neutralisation reaction.What colour change would be seen?

pH is measured on a scale that works in two directions.How much more alkaline is pH 12 than pH 9?

A small change in pH can mean a big change in how acidic or alkaline a solution is.Corrosive substances are dangerous to humans because they can cause chemical burns.Choose the substance or substances that could have the corrosive hazard symbol on them.

When acids react with some metals, bubbles can be observed.Lena wanted to test if the bubbles that she observed during a chemical reaction contained hydrogen gas.Describe what Lena could do to test if the gas produced by the chemical reaction is hydrogen.

Explain how a car releasing nitrogen monoxide in one country can cause acid rain damage to a forest in a different country.- include how the pollutant in acid rain is formed.- describe the pollutants and sources that can cause acid rain.

A small change in pH can mean a big change in how acidic or alkaline a solution is.Corrosive substances are dangerous to humans because they can cause chemical burns.Choose the substance or substances that could have the corrosive hazard symbol on them.

Universal indicator can be used to test if neutralisation reactions have occurred.
An acid is tested with universal indicator before and after a neutralisation reaction.
What colour change would be seen?

pH is measured on a scale that works in two directions.
How much more alkaline is pH 12 than pH 9?

When acids react with some metals, bubbles can be observed.
Lena wanted to test if the bubbles that she observed during a chemical reaction contained hydrogen gas.
Describe what Lena could do to test if the gas produced by the chemical reaction is hydrogen.

Explain how a car releasing nitrogen monoxide in one country can cause acid rain damage to a forest in a different country.
- include how the pollutant in acid rain is formed.
- describe the pollutants and sources that can cause acid rain.

Universal indicator can be used to test if neutralisation reactions have occurred.
An acid is tested with universal indicator before and after a neutralisation reaction.
What colour change would be seen?

pH is measured on a scale that works in two directions.
How much more alkaline is pH 12 than pH 9?

A small change in pH can mean a big change in how acidic or alkaline a solution is.
Corrosive substances are dangerous to humans because they can cause chemical burns.
Choose the substance or substances that could have the corrosive hazard symbol on them.

When acids react with some metals, bubbles can be observed.
Lena wanted to test if the bubbles that she observed during a chemical reaction contained hydrogen gas.
Describe what Lena could do to test if the gas produced by the chemical reaction is hydrogen.

Explain how a car releasing nitrogen monoxide in one country can cause acid rain damage to a forest in a different country.
- include how the pollutant in acid rain is formed.
- describe the pollutants and sources that can cause acid rain.

A small change in pH can mean a big change in how acidic or alkaline a solution is.
Corrosive substances are dangerous to humans because they can cause chemical burns.
Choose the substance or substances that could have the corrosive hazard symbol on them.