Elements and Compounds
Authored by Karina Padron
Science
7th Grade
NGSS covered
Used 36+ times
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63 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
What is the chemical symbol for the element Oxygen?
O
Ox
Oy
Om
Tags
TEKS.SCI.7.6A
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Which of the following is a compound?
H
O
H O
N
Tags
TEKS.SCI.7.6A
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Compare the number of atoms in a molecule of CO to a molecule of H O.
CO has more atoms than H O.
CO has fewer atoms than H O.
Both have the same number of atoms.
CO has twice as many atoms as H O.
Tags
TEKS.SCI.7.6A
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Which of the following best describes a molecule?
A single atom of an element.
A group of atoms bonded together.
A mixture of different elements.
A type of chemical reaction.
Tags
TEKS.SCI.7.6A
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Identify the compound from the following chemical formulas: NaCl, O , N , He.
NaCl
O
N
He
Tags
TEKS.SCI.7.6A
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Explain why H O is considered a compound and not an element.
It is made of two different elements chemically bonded.
It is a single type of atom.
It cannot be broken down into simpler substances.
It is a mixture of gases.
Tags
TEKS.SCI.7.6A
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Which of the following statements is true about elements and compounds?
Elements can be broken down into simpler substances.
Compounds are made of two or more elements chemically combined.
Compounds consist of only one type of atom.
Elements are made of two or more compounds.
Tags
TEKS.SCI.7.6A
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