Ionic Compounds and Chemical Reactions

Ionic Compounds and Chemical Reactions

Assessment

Interactive Video

Chemistry

9th - 10th Grade

Hard

Created by

Sophia Harris

FREE Resource

The video explains the reaction of sodium bromide (NaBr) with water (H2O). It begins by identifying sodium as a metal and bromine as a non-metal, forming an ionic compound. The video details how sodium bromide dissociates into sodium cations (Na+) and bromide anions (Br-) when dissolved in water, forming an aqueous solution. The concept of aqueous solutions is explained, highlighting that the ions are dissolved in water, eliminating the need to write H2O on the product side of the equation.

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7 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What type of compound is formed when sodium, a metal, combines with bromine, a non-metal?

Metallic compound

Ionic compound

Molecular compound

Covalent compound

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the charge of a sodium ion when it forms an ionic compound?

0

1-

2+

1+

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which group in the periodic table does bromine belong to, and what is its ionic charge?

Group 16, 2-

Group 2, 2+

Group 17, 1-

Group 1, 1+

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to sodium bromide when it is added to water?

It forms a precipitate

It remains unchanged

It reacts to form a gas

It dissolves and dissociates into ions

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the ions formed when sodium bromide dissociates in water?

Na- and Br+

Na2- and Br+

Na+ and Br-

Na2+ and Br2-

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the notation 'aq' signify in a chemical equation?

Solid state

Gaseous state

Aqueous or dissolved in water

Liquid state

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is it unnecessary to write H2O on the product side of the equation when using 'aq'?

Because water is not involved in the reaction

Because water is a reactant

Because 'aq' already indicates the presence of water

Because water evaporates