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Y8 - topic 2 - lesson 4: Signs of a chemical reaction

Authored by C Spinks

Chemistry

7th - 8th Grade

Used 7+ times

Y8 - topic 2 - lesson 4: Signs of a chemical reaction
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8 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is NOT a sign of chemical reaction?

Fizzing (effervescence)

Colour change

Change in temperature

Melting

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is NOT a sign of chemical reaction?

Appearance or disappearance of solids

Colour change

Evaporation

Absorption or release of energy

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following IS a sign of chemical reaction?

Appearance or disappearance of solids

Melting

Evaporation

Dissolving

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following IS a sign of chemical reaction?

Change in temperature

Freezing

Evaporation

Sublimation

5.

FILL IN THE BLANKS QUESTION

1 min • 1 pt

The 5 signs of a chemical reaction are: (a)   , colour changes, changes in temperature, absorption or release of light and the appearance or disappearance of solids.

6.

FILL IN THE BLANKS QUESTION

1 min • 1 pt

The 5 signs of a chemical reaction are: fizzing (effervescence), (a)   changes, changes in smell, absorption or release of energy (which includes temperature changes) and the appearance or disappearance of solids.

7.

FILL IN THE BLANKS QUESTION

1 min • 1 pt

The 5 signs of a chemical reaction are: fizzing, colour changes, changes in (a)   , absorption or release of energy and the appearance or disappearance of solids.

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