Ionic Charges and Naming Compounds

Ionic Charges and Naming Compounds

Assessment

Interactive Video

Chemistry

10th - 12th Grade

Practice Problem

Hard

Created by

Olivia Brooks

FREE Resource

The video tutorial explains how to name the compound CR2CO3. It begins by identifying the components, including the carbonate ion and chromium, a transition metal. The tutorial emphasizes the importance of understanding ionic charges, particularly for transition metals, and demonstrates how to calculate the charge of chromium in the compound. The final name, Chromium 3 Carbonate, is derived by considering the charges and using Roman numerals to indicate the charge of the chromium ion.

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8 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the ion present in Cr2CO3 that is bonded to chromium?

Carbonate

Nitrate

Phosphate

Sulfate

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is it important to determine the charge on chromium in Cr2CO3?

Because chromium is a non-metal

Because chromium is a transition metal

Because chromium is a halogen

Because chromium is a noble gas

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the ionic charge of the carbonate ion?

1-

2-

3-

4-

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many carbonate ions are present in Cr2CO3?

Two

Four

One

Three

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the total negative charge contributed by the carbonate ions in Cr2CO3?

4-

2-

8-

6-

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the charge on each chromium atom in Cr2CO3?

4+

1+

2+

3+

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is the charge of chromium represented in the name of Cr2CO3?

In Greek letters

As a prefix

As a subscript

In Roman numerals

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