Acids, Alkalis and Solutions

Sort the following substances under the correct headings

Groups:

(a) Acid

,

(b) Alkali

• Lemon juice

• Cola

• Bleach

• Vinegar

• Toothpaste

• Indigestion tablets

Place these into the correct order to show the colour change of a strong acid in universal indicator as it becomes diluted

• Yellow

• Orange

• Green

• Red

Match the term to the correct definition

• Soluble

• The substance that is dissolved

• Solubility

• The substance that does the dissolving

• Solute

• A substance that can't dissolve

• Solvent

• How well something can dissolve

• Insoluble

• A substance that can dissolve

Use the phrases to correctly label the solutions in the picture

a

b

c

saturated

dilute

concentrated

Acids and alkalis are described as chemical _______?

Which option shows the colour universal indicator would turn in a weak acid?

• red

• yellow

• blue

• purple

When making hot chocolate, milk is warmed and hot chocolate powder is stirred into it. In this example, the how chocolate powder is the​ (a)   , the milk is the​ (b)   and the hot chocolate is the​ (c)  

• solute
• solvent
• solution

Put the stages of making a natural indicator into the correct order

• Add sand and water/ethanol

• Test the liquid with acid/alkali

• Mash fruit in a mortar and pestle

• Take a sample of the liquid

Which of the following are gases that cause acid rain?

• carbon dioxide

• nitrogen oxide

• sodium hydroxide

• sulfur dioxide

As temperature increases, solubility​ (a)   because there is​ (b)   space​ between the particles.

• increases
• decreases
• more
• less