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Gallium Oxide and Its Properties

Gallium Oxide and Its Properties

Assessment

Interactive Video

Chemistry

9th - 10th Grade

Practice Problem

Hard

Created by

Ethan Morris

FREE Resource

The video tutorial explains the formula for gallium oxide, also known as gallium(III) oxide or gallium trioxide. It begins by introducing the compound and its various names. The video then examines the periodic table to determine the charges of gallium and oxygen, which are +3 and -2, respectively. Using the crisscross method, the tutorial demonstrates how to derive the formula Ga2O3. The video concludes by verifying the formula and explaining the significance of the Roman numeral III in the compound's name.

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9 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the different names for gallium oxide mentioned in the video?

Gallium dioxide

Gallium trioxide

Gallium pentoxide

Gallium monoxide

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which group does gallium belong to in the periodic table?

Group 17

Group 13

Group 18

Group 1

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the typical charge of an oxygen ion?

2-

1-

2+

1+

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the chemical symbol for gallium?

Gm

Gl

Gn

Ga

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many oxygen atoms are present in the formula Ga2O3?

1

2

3

4

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What method is used to determine the formula for gallium oxide?

Substitution method

Crisscross method

Cross-multiplication method

Balancing method

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the net charge of the compound Ga2O3?

2-

3+

1+

0

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