GCSE Chemistry - State Symbols & Predicting States of Matter #32

The video tutorial explains how to use state symbols in chemical equations to indicate the state of substances. It covers the symbols for solids, liquids, gases, and aqueous solutions. An example of sodium reacting with water is provided to illustrate the use of these symbols. The tutorial also discusses how to predict the state of substances at different temperatures using melting and boiling points, with examples of water, copper, and magnesium.

Which state symbol is used to represent a substance that is dissolved in water?

• S

• AQ

• L

• AG

In the reaction of sodium with water, what state symbol is used for sodium at room temperature?

• AG

• S

• L

• AQ

What state symbol would you use for hydrogen gas produced in a reaction?

• AQ

• L

• S

• AG

At 800°C, what state would water be in?

• Gas

• Aqueous

• Liquid

• Solid

If magnesium is at 800°C, what state would it be in?

• Liquid

• Solid

• Gas

• Aqueous