Barium Hydroxide and Polyatomic Ions

Barium Hydroxide and Polyatomic Ions

Assessment

Interactive Video

Chemistry

9th - 10th Grade

Practice Problem

Hard

Created by

Olivia Brooks

FREE Resource

The video tutorial explains how to write the chemical formula for barium hydroxide. It begins by identifying barium on the periodic table and recognizing hydroxide as a polyatomic ion. The tutorial discusses the formation of ionic compounds, emphasizing the need to balance charges to achieve a neutral compound. It provides a step-by-step guide to writing the formula, including the use of subscripts and parentheses, and concludes with a verification of the formula's correctness.

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9 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the element symbol for barium?

Ba

Bi

Be

Br

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is a polyatomic ion?

Hydroxide

Sulfate

Barium

Chloride

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the charge of a barium ion?

1+

2+

1-

2-

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the charge of the hydroxide ion?

2-

1-

2+

1+

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you balance the charges in barium hydroxide?

Change the element

Adjust the subscripts

Add more barium ions

Add more hydroxide ions

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why do we use parentheses in the formula for barium hydroxide?

To show the charge

To separate elements

To indicate a polyatomic ion

To balance the equation

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the net charge of a correctly balanced barium hydroxide compound?

1+

0

1-

2-

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