elements & compounds, atoms, chemical formulas
Authored by Mckenzie Cochennet
Science
7th Grade
TEKS covered
Used 25+ times
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28 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main difference between an element and a compound?
Elements are made of one type of atom, while compounds are made of two or more types of atoms.
Elements are made of molecules, while compounds are made of atoms.
Elements are always gases, while compounds are always solids.
Elements cannot be found on the periodic table, while compounds can.
Tags
TEKS.SCI.7.6A
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Identify the number of hydrogen(H) atoms in the chemical formula .
6
12
18
24
Tags
TEKS.SCI.7.6B
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is an example of an element?
Tags
TEKS.SCI.7.6A
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many oxygen elements are present in the chemical formula ?
1
2
3
4
Tags
TEKS.SCI.7.6B
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following best describes a compound?
A substance made of only one type of atom.
A substance made of two or more types of atoms chemically bonded together.
A mixture of different elements.
A substance that cannot be broken down into simpler substances.
Tags
TEKS.SCI.7.6A
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the chemical formula , how many sodium (Na) atoms are there?
0
1
2
3
Tags
TEKS.SCI.7.6B
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a compound?
Tags
TEKS.SCI.7.6A
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