Ionic Compounds and Their Properties

Ionic Compounds and Their Properties

Assessment

Interactive Video

Chemistry

9th - 10th Grade

Practice Problem

Hard

Created by

Liam Anderson

FREE Resource

The video tutorial explains how to write the formula for aluminum sulfide by using the periodic table to identify the elements and their charges. It describes the ionic charges of aluminum and sulfur, and how to achieve a neutral compound by balancing these charges. The crisscross method is introduced to simplify the process of finding the correct formula, which is verified for accuracy. The tutorial concludes with a confirmation of the formula and a thank you from Dr. V.

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9 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the element symbol for aluminum on the periodic table?

An

Ag

Au

Al

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which type of compound is formed between a metal and a non-metal?

Metallic

Hydrogen

Ionic

Covalent

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the ionic charge of aluminum?

2+

4+

1+

3+

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the ionic charge of sulfur?

3-

2-

1-

4-

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What method can be used to balance the charges in an ionic compound?

Cross-multiply

Elimination

Crisscross

Substitution

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the crisscross method, what do you do with the charges?

Add them

Subtract them

Crisscross them

Ignore them

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many sulfur atoms are needed to balance the charge with two aluminum atoms?

2

3

1

4

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