1s Sems Review A
Authored by C. Tyree
Chemistry
11th Grade
NGSS covered
Used 7+ times
AI Actions
Add similar questions
Adjust reading levels
Convert to real-world scenario
Translate activity
More...
Content View
Student View
12 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a compound?
A mixture of elements
A chemical combination of elements
A single element
A physical combination of elements
Tags
NGSS.MS-PS1-1
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
According to the Law of Definite Composition, how do elements in a compound combine?
In any proportion by mass
In a 1:2 ratio by mass
In the same proportion by mass
In a 2:1 ratio by mass
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the mass ratio of hydrogen to oxygen in water?
1:2
2:1
1:8
8:1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of heating magnesium in the Law of Definite Composition experiment?
To melt the magnesium
To react it with nitrogen
To react it with oxygen
To dissolve it in water
Tags
NGSS.HS-PS1-5
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the correct procedure for smelling chemicals in the lab?
Directly inhale the vapors.
Waft the vapors to your nose.
Smell the container directly.
Avoid smelling at all.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of making sure the magnesium ribbon is clean and shiny?
To improve its appearance.
To ensure it reacts properly.
To make it easier to handle.
To increase its weight.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
With what element does magnesium combine when strongly heated? What is the source of this element?
Nitrogen from the air.
Oxygen from the air.
Hydrogen from water.
Carbon from carbon dioxide.
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?
