Chemical Reactions Test RETAKE

Chemical Reactions Test RETAKE

8th Grade

25 Qs

quiz-placeholder

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Chemical Reactions Test RETAKE

Chemical Reactions Test RETAKE

Assessment

Quiz

English

8th Grade

Medium

Created by

Jennifer Naylor

Used 2+ times

FREE Resource

25 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Choose the reaction that will have the faster rate:

2.75 grams of sodium bicarbonate in 50 mL of vinegar.

18.9 grams of sodium bicarbonate in 50 mL of vinegar.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is a combustion reaction?

2H₂ + O₂ → 2H₂O

CH₄ + 2O₂ → CO₂ + 2H₂O

Fe + O₂ → Fe₂O₃

NaCl → Na + Cl₂

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The higher the concentration of the reactants in a reaction will ________________ the rate of reaction

Increase

Decrease

Leave the same

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What type of Chemical reaction is this? 2Cu + O2 -> 2CuO

Double Replacement

Decomposition

Synthesis

Combustion

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Decreasing the temperature in a chemical reaction will ______ the rate of a chemical reaction.

Decrease

Increase

Have no effect

Double

6.

MATCH QUESTION

30 sec • 1 pt

Match the factor that can affect the rate of chemical reaction to its correct description.

Used to decrease the amount of energy needed to cause a reaction

Concentration

The size of the particles can affect the rate of a reaction

Temperature

The amount of reactants involved in the reaction

Catalyst

The heat energy involved in a reaction

Surface Area

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the role of a catalyst in a chemical reaction?

It is consumed in the reaction and permanently changes the products.

It increases the amount energy required for the reaction.

It speeds up the reaction without being consumed in the process.

It decreases the temperature of the reaction.

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