Introduction to Solubility Rules

• When it comes to aqueous solutions, it is important to know which compounds will form aqueous solutions and which compounds will not.

• To understand which compounds form aqueous solutions or solids in water, scientists use solubility rules.

• Watch the video and answer questions to learn how to use the solubility rules.
  

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​Solubility Rules

Multiple Choice

What is the term that describes the ability of chemical to dissolve in water?

• ionic

• covalent

• soluble

• insoluble

Multiple Choice

What term is used to describe a chemical that forms a solid when in water?

• acid

• molecular

• soluble

• insoluble

Multiple Choice

What state of matter when a chemical dissolves in water?

• solid

• liquid

• gas

• aqueous solution

Match

Match the following states of matter with their correct symbol that is used in a chemical reaction.

• solid

• liquid

• gas

• aqueous solution

(s)

(l)

(g)

(aq)

• (s)

• (l)

• (g)

• (aq)

• Remember that group 17 are called halogens

• When they form anions, the ending of their name changes to -ide

• So halogens are sometimes called halides in the solubility table
  

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Halides

Categorize

Options (7)

KCl

barium chlorate

NH₄OH

silver nitrate

silver chloride

SrBr₂

lead(II) sulfate

Use the solubility rules on the back of your periodic table to organize these options based on whether they are soluble or insoluble in water.

Soluble

Insoluble

Multiple Choice

What does insoluble mean?

• It will not dissolve in water, instead it will be a solid.

• It dissolves in water, forming an aqueous solution.

• It dissolves in water, forming a liquid.

• It creates free floating ions when placed in water.

Multiple Select

Which of the following compounds are insoluble? (Select all that apply.)

• iron(III) hydroxide

• ammonium chlorate

• barium dichromate

• strontium hydroxide

• calcium sulfide

Categorize

Options (8)

KBr

AgCl

sodium nitrate

lead(II) iodide

Li₂S

(NH₄)₃PO₄

Mn(OH)₂

magnesium carbonate

Use the solubility rules on the back of the periodic table to organize the following compounds as an aqueous solution or a solid.

Aqueous Solution

Solid