3.4: Writing Chemical Formulas
Chemistry
10th - 12th Grade
NGSS covered
Used 27+ times
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35 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chemical compound is formed when two or more ions are formed.
True
False
2.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Choose the incorrect pairing below:
Cation -> positive
Anion -> negative
Ionic bonding -> metal to metal
Covalent bonding -> nonmetal to nonmetal
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
An atom must have how many valence electrons to become stable?
6
8
10
12
Tags
NGSS.HS-PS1-2
NGSS.HS-PS1-1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which is positive ion?
Cation
Anion
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which is negative ion?
Cation
Anion
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in writing a chemical formula?
Write the multipliers as subscript of each element.
Identify the symbols and charges of the elements.
Balance the charges by looking for multipliers.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the correct chemical formula of sodium oxide?
Na2O
NaO2
Tags
NGSS.HS-PS1-2
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