EBA S2 Acids and Alkalis Flash Cards

Front

What are acids and alkalis?

Back

Acids and alkalis are two groups of chemicals useful in everyday life but can be dangerous. They often have hazard warning labels.

Front

How can you tell if a substance is an acid or an alkali?

Back

By using a universal indicator or pH paper, which changes color depending on whether the substance is an acid, alkali, or neutral.

Front

What is the pH range for acids?

Back

Acids have a range of 1 - 6 on the pH scale

Front

What is the pH range for alkalis?

Back

Alkalis have a pH values of 8-14

Front

What is the pH value and color of a neutral substance?

Back

Neutral substances have a pH value equal to 7 and are colored green on the pH scale.

Front

Give examples of household acidic substances.

Back

Vinegar, fruit juices, and fizzy drinks.

Front

Give examples of household neutral substances.

Back

Salt, sugar, and some toiletries.

Front

Give examples of household alkaline substances.

Back

Cleaning chemicals, milk of magnesia/indigestion tablets, and toothpaste.

Front

What is the chemical formula for hydrochloric acid?

Back

HCl

Front

What is the chemical formula for nitric acid?

Back

HNO3