LEV KS3 Y7 Chemical Reactions

LEV KS3 Y7 Chemical Reactions

7th - 8th Grade

15 Qs

quiz-placeholder

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LEV KS3 Y7 Chemical Reactions

LEV KS3 Y7 Chemical Reactions

Assessment

Quiz

Chemistry

7th - 8th Grade

Medium

Created by

Science Department

Used 193+ times

FREE Resource

15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a chemical reaction, mass will:

Increase

Decrease

Stay the same

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is needed for combustion?

Fuel

Heating

Oxygen

All of the above

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the correct equation for combustion?

Hydrocarbon + carbon dioxide \rightarrow water + energy

Hydrocarbon + Oxygen \rightarrow carbon dioxide + water ( + energy)

Energy + oxygen \rightarrow Carbon dioxide + water

Hydrocarbon + water \rightarrow Oxygen + energy

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Oxidation is :

The loss of oxygen

The gain of oxygen

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When copper carbonate is heated it forms copper oxide and carbon dioxide. What type of reaction is this called?

Oxidation

Reduction

Thermal decompostion

Dispalcement reaction

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A reaction that transfers energy to the surrounding is called what?

Endothermic

Exothermic

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A reaction that takes in energy from the suroundings is called what?

Endothermic

Exothermic

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