Atoms & Chemical Formulas
Authored by Colleen Steinhoff
Science
7th Grade
NGSS covered
Used 2+ times
AI Actions
Add similar questions
Adjust reading levels
Convert to real-world scenario
Translate activity
More...
Content View
Student View
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 mins • 5 pts
Which of the following is an example of a compound?
helium (He)
sodium (Na)
carbon dioxide (CO2)
Tags
NGSS.MS-PS1-1
2.
MULTIPLE CHOICE QUESTION
30 mins • 5 pts
Which statement about molecules is true?
Molecules are always composed of only one type of atom.
Molecules are the smallest unit of an element that keeps its chemical properties.
Molecules are formed by atoms bonding together.
Tags
NGSS.MS-PS1-1
3.
MULTIPLE CHOICE QUESTION
30 mins • 5 pts
What does the chemical formula H2O represent?
a molecule of oxygen gas
a compound consisting of two hydrogen atoms and one oxygen atom
a mixture of hydrogen and oxygen
Tags
NGSS.MS-PS1-1
4.
MULTIPLE CHOICE QUESTION
30 mins • 5 pts
Which of the following compounds has three kinds of elements?
NaOH
H2O
Na2O
Tags
NGSS.MS-PS1-1
5.
MULTIPLE CHOICE QUESTION
30 mins • 5 pts
Which of the following is an example of a chemical symbol?
oxygen (O)
carbon dioxide (CO2)
hydrogen peroxide (H2O2)
6.
MULTIPLE CHOICE QUESTION
30 mins • 5 pts
Your teacher displays the following diagram of oxygen and water.
Students were asked to describe these substances as molecules, compounds, or both. Two
students made these statements:
Sam: Oxygen and water are both molecules and compounds.
Becca: Water is both a molecule and a compound, but oxygen is only a molecule.
Which student is correct?
Sam
Becca
Both students
Neither student
Tags
NGSS.MS-PS1-1
7.
MULTIPLE CHOICE QUESTION
30 mins • 5 pts
What evidence best supports your choice?
A molecule is any two or more atoms bonded together.
Molecules that are compounds have two or more atoms of different elements bonded
together.
Compounds are formed from one or more elements.
Tags
NGSS.MS-PS1-1
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 Microsoft
or continue with
%20(1).png)
Apple
Others
By signing up, you agree to our Terms of Service & Privacy Policy
Already have an account?
