Chemical Processes and Equations

Chemical Processes and Equations

7th Grade

43 Qs

quiz-placeholder

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Chemical Processes and Equations

Chemical Processes and Equations

Assessment

Quiz

Other

7th Grade

Easy

Created by

Maya Allouh

Used 3+ times

FREE Resource

43 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many HCl molecules do you need to balance the chemical equation below? Mg + __HCl → MgCl2 + H2

2

12

5

1

2.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

The synthesis reaction can also be named by____________. (Select all that apply).

Decomposition

Buring

Combination

Composition

Replacement

3.

FILL IN THE BLANK QUESTION

1 min • 1 pt

A reaction that always starts with a Hydrocarbon that reacts with oxygen and produces carbon dioxide and water.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

In the reaction below, water is a ________________.

Reactant

Product

A and B are correct

None of the above.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Evidence of a chemical reaction is anything that shows ____________.

a new substance has formed

a solid dissolved in a liquid

interaction between 2 gases

a change in the state of matter

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Decomposition is the opposite reaction of ______________.

Synthesis

Combustion

Single replacement

Double replacement

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Choose the correct answer: The number to the lower side of an element is a __________.

Subscript

Superscript

Coefficient

B and C are correct

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