Chemical Reactions and equations
Authored by Sangeeta Khorana
Science
10th Grade
NGSS covered
Used 905+ times
AI Actions
Add similar questions
Adjust reading levels
Convert to real-world scenario
Translate activity
More...
Content View
Student View
10 questions
Show all answers
1.
FILL IN THE BLANK QUESTION
1 min • 1 pt
(a) of electrons is oxidation.
Tags
NGSS.HS-PS1-2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Electrolysis of water is a decomposition reaction. The molar ratio of hydrogen and oxygen gases liberated during electrolysis of water is:
1:1
2:1
1:2
4:1
Tags
NGSS.HS-PS1-7
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is observed when a solution of potassium iodide is added to silver nitrate solution?
No reaction takes place
White precipitate of silver iodide is formed
Yellow precipitate of AgI is formed
AgI is soluble in water
Tags
NGSS.HS-PS1-2
4.
FILL IN THE BLANK QUESTION
1 min • 1 pt
The oxidizing agent in the following reaction is (a)
CuO + H2 -->Cu + H2O
Tags
NGSS.HS-PS1-2
5.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Rusting of iron is a physical change.
True
False
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
CaO + H2O --> Ca(OH)2
This is an example of
Combination reaction
Decomposition reaction
Displacement reaction
None of the above
7.
FILL IN THE BLANK QUESTION
1 min • 1 pt
The process of wasting away of metals on exposure to moist air is called (a) .
Tags
NGSS.HS-ESS2-5
Access all questions and much more by creating a free account
Create resources
Host any resource
Get auto-graded reports
Continue with Google
Continue with Email
Continue with Classlink
Continue with Clever
or continue with
Microsoft
%20(1).png)
Apple
Others
Already have an account?
