Unit 2 - Chemical Equations and Chemical Reactions

Unit 2 - Chemical Equations and Chemical Reactions

8th Grade

45 Qs

quiz-placeholder

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Unit 2 - Chemical Equations and Chemical Reactions

Unit 2 - Chemical Equations and Chemical Reactions

Assessment

Quiz

Science

8th Grade

Practice Problem

Easy

NGSS
MS-PS1-1, MS-PS1-5, MS-PS1-2

+2

Standards-aligned

Created by

Jill Gregory

Used 106+ times

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45 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

This image shows the product of a chemical reaction. Which is the name of the kind of solid substance formed in this type of chemical reaction?

aqueous

precipitate

acid

synthesis

Tags

NGSS.MS-PS1-2

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which example provides evidence that a chemical reaction has occurred.

dissolving

melting

formation of a gas

bending

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

How many oxygen atoms are present in the following? 
4Ca(OH)2
4
6
8
1

Tags

NGSS.MS-PS1-1

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which of the following describes a chemical change?

water freezes to form ice

sugar dissolves in water

gasoline burns in a car engine

a piece of metal expands when it is heated

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What type of change occurs when a new substance is formed that has properties different from those of the original substances?

chemical change

nuclear change

physical change

mutation

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which of the following describes a chemical change?

cutting a piece of paper with scissors

cooling a mixture of air and kerosene vapor to obtain liquid kerosene

burning a piece of notebook paper in the presence of oxygen

heating water over a flame to its boiling point

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

In every chemical reaction, the mass of the products is always ____________________________.

slightly less than the mass of the reactants

much less than the mass of the reactants

the same as the mass of the reactants

greater than the mass of the reactants

Tags

NGSS.MS-PS1-5

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