Reaction Processes

Reaction Processes

7th - 8th Grade

8 Qs

quiz-placeholder

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Reaction Processes

Reaction Processes

Assessment

Quiz

Science, Chemistry

7th - 8th Grade

Hard

Created by

ziDragoneye ziDragoneye

Used 2+ times

FREE Resource

8 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 Oxygen + Iron  RustOxygen\ +\ Iron\ \longrightarrow\ Rust  
The molecules to the left of the arrow (Oxygen and Iron) are known as the __________ of the above reaction.

Reactants

Products

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 Oxygen + Iron  RustOxygen\ +\ Iron\ \longrightarrow\ Rust  
The molecule to the right of the arrow (Rust) is known as the __________ of the above reaction.

Reactant

Product

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a chemical reaction, the total mass of the reactants is not always equal to the mass of the products.

True

False

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The Law of Conservation of Mass states that matter ...

... cannot be created or destroyed

... can be created or destroyed

... cannot be destroyed

... cannot be created

5.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Molecules are always moving, what must they do if you want them to react? (one word)

6.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

What do molecules have to have if you want them to react?

Enough energy

Correct orientation

Correct colour

Enough atoms

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An exothermic reaction occurs when the reactants ...

... absorb energy from the enviroment

... release energy into the enviroment

… release as much energy as they absorb

8.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An endothermic reaction occurs when the reactants ...

... absorb energy from the enviroment

... release energy into the enviroment

… release as much energy as they absorb