Evidences of Chemical Reaction

Evidences of Chemical Reaction

8th Grade

15 Qs

quiz-placeholder

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Evidences of Chemical Reaction

Evidences of Chemical Reaction

Assessment

Quiz

Science

8th Grade

Hard

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

+1

Standards-aligned

Created by

Lisa Thompson

FREE Resource

15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

Hydrogen peroxide breaks down to form water and oxygen gas. Which observation is evidence that a chemical reaction has occurred?

The mass of the solution remains the same.

 Phase changes are observed.

 The color of the solution remains clear.

Water is produced. 

Tags

NGSS.MS-PS1-2

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The following are the evidences that chemical reaction took place, EXCEPT:

evolution of gas

formation of precipitate

formation of new element

change in the intrinsic properties

Tags

NGSS.MS-PS1-2

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

What are the products in the equation?

Zn and CuSO4

Zn and Cu

ZnSO4 and Cu

Zn only

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Which of the following chemical reaction shows the production of water from hydrogen gas and oxygen gas?

2 H2O → 2 H2 + O2

2 H2 + O2 → 2 H2O

3 H2 + O2 → 3 H2O

3 H2O → H2 + 3 O2

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Which of the following best describes the combustion reaction?

hydrocarbon combines with oxygen to produce CO2 and H2O

hydrogen combines with CO2 to produce O2 and H2O

hydrocarbon combines with H2O to produce CO2 and O2

CO2 combines with oxygen to produce hydroxide and H2O

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS1-5

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Quicklime ( CaO ) is used as a drying agent. When water is added to this, slaked lime Ca(OH)2 is formed. What type of reaction is this?

combination

single displacement

decomposition

double displacement

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What are the evidences of a chemical reaction?

Color , temperature

Gas, precipitate

Light

All above

Tags

NGSS.MS-PS1-2

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