Evidences of Chemical Reaction

Quiz
•
Science
•
8th Grade
•
Hard
+1
Standards-aligned
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
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
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
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
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
Create a free account and access millions of resources
Similar Resources on Wayground
20 questions
Physical and Chemical Changes; Law of Conservation of Mass

Quiz
•
8th Grade
14 questions
Chemical Reactions

Quiz
•
7th - 9th Grade
20 questions
Elements / Compounds / Chemical Change

Quiz
•
6th - 8th Grade
20 questions
Chapter 12 Lesson 1 Understanding Chemical Reactions

Quiz
•
8th Grade
17 questions
Physical & Chemical Changes

Quiz
•
8th Grade
15 questions
Conservation of Mass and Chemical Reactions

Quiz
•
6th - 8th Grade
20 questions
8.P.1.4 Review

Quiz
•
8th Grade
12 questions
Energy Changes in Chemical Reactions

Quiz
•
9th - 11th Grade
Popular Resources on Wayground
25 questions
Equations of Circles

Quiz
•
10th - 11th Grade
30 questions
Week 5 Memory Builder 1 (Multiplication and Division Facts)

Quiz
•
9th Grade
33 questions
Unit 3 Summative - Summer School: Immune System

Quiz
•
10th Grade
10 questions
Writing and Identifying Ratios Practice

Quiz
•
5th - 6th Grade
36 questions
Prime and Composite Numbers

Quiz
•
5th Grade
14 questions
Exterior and Interior angles of Polygons

Quiz
•
8th Grade
37 questions
Camp Re-cap Week 1 (no regression)

Quiz
•
9th - 12th Grade
46 questions
Biology Semester 1 Review

Quiz
•
10th Grade