Acids and Alkalis

What is the meaning of the above hazard warning symbol?

• Corrosive

• Explosive

• Toxic

• Radioactive

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Acid in our stomach:

• Hydrochloric acid

• Sulfuric acid

• Acetic acid

• Carbonic acid

Which substance is alkali?

• Toothpaste

• Vinegar

• Lemon juice

• Soft drink

A solution with a pH of 3.6 would be...

• Acid

• Base

• Neutral

• Acid and Base

Which substance is avid?

• Toothpaste

• Vinegar

• Soap

• Ammonia

What is the correct description of how an acid and alkali react?

• Acidification

• Naturalisation

• Neutralisation

• Alkalisation

Tags

NGSS.MS-PS1-5

What solution can you use to test if a colourless substance is an acid or an alkali?

• Catalyst

• Salt

• Universal Indicator

• Water

Universal indicator will

• turn red with bleach

• turn green with cola

• identify weak and strong pH

• turn red in an alkaline solution

How would you describe a solution of pH 8?

• Neutral

• Weak alkali

• Weak acid

• Strong acid

What pH best describes a neutral solution?

• 0

• 1

• 7

• 14