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C09 EOTT - How do acids react?

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Last updated about 3 hours ago
35 questions
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Question 1
1.

What chemical property do all acids have in common?

Question 2
2.

What colour does litmus paper turn in an acidic solution?

Question 3
3.

What colour does litmus paper turn in an alkali solution?

Question 4
4.

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

Question 5
5.

Universal indicator measures the ___________ of a solution.

Question 6
6.

What does a pH value of less than 7 mean?

Question 7
7.

What does a pH value of 7 mean?

Question 8
8.

What does a pH value of greater than 7 mean?

Question 9
9.

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

Question 10
10.

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

Question 11
11.

What type of bases can form alkaline solutions?

Question 12
12.

What is a neutralisation reaction?

Question 13
13.

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

Question 14
14.

_________ rain can cause damage to plants, animals and buildings

Question 15
15.

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

Question 16
16.

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

Question 17
17.

_____________ bases react with acids to produce carbon dioxide gas.

Question 18
18.

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

Question 19
19.

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

Question 20
20.

What acid can form metal sulphate salts when it reacts?

Question 21
21.

What acid can form metal chloride salts when it reacts?

Question 22
22.

What acid can form metal nitrate salts when it reacts?

Question 23
23.

What is the chemical formula of nitric acid?

Question 24
24.

What is the chemical formula of sulphuric acid?

Acids, bases, and alkalis are substances that can react in chemical reactions.
Required
1
Question 25
25.

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

Required
3
Required
2
Question 27
27.
Other Answer Choices:
acidic
alkaline
The pH scale measures how acidic or alkaline a solution is. pH can be measured using universal indicator.
Required
3
Required
1
Question 29
29.

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?

Required
1
Required
1
Acids react with some metals to form two products.
Required
3
Question 32
32.
Complete the word equations for the below reactions between metals and acids.

Aluminium + Sulphuric acid → _______ + _______

Sodium + Nitric acid → _______ + _______
Required
2
Question 33
33.

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.
Required
2
Question 34
34.
Name the primary and secondary pollutants of the example above.

Primary pollutant:_______
Secondary pollutant: _______
Required
6
Question 35
35.

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.

Question 26
26.

Match up words to their correct definitions.

Draggable itemarrow_right_altCorresponding Item
Base
arrow_right_alt
A substance which reacts with a base in a neutralisation reaction.
Acid
arrow_right_alt
Soluble bases which dissolve in water.
Alkali
arrow_right_alt
Any substance that reacts with an acid.
A student tests two unknown solutions to see if they are acidic or alkaline. Their observations are recorded in the table below, but they did not finish their conclusion.

Complete the table using the words “acidic” and “alkaline”.
Question 28
28.
Complete the pH scale with the words:
very acidic; very alkaline; less acidic; less alkaline; neutral
Other Answer Choices:
less alkaline
neutral
very alkaline
less acidic
very acidic
Question 30
30.

pH is measured on a scale that works in two directions.

How much more alkaline is pH 12 than pH 9?

Question 31
31.

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.

Less alkaline