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3.4: Writing Chemical Formulas

Chemistry

10th - 12th Grade

NGSS covered

Used 27+ times

3.4: Writing Chemical Formulas
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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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