Acids and Bases Worksheet

Front

Scientists who study substances in God's Creation to discover of what they consist are called _________________.

Back

chemists

Answer explanation

Scientists who study substances to understand their composition are known as chemists. This field focuses on the properties, reactions, and structures of matter, making 'chemists' the correct answer.

Front

One characteristic of bases is that they are.

Back

slippery

Answer explanation

One characteristic of bases is that they feel slippery to the touch, which is a key property distinguishing them from acids. The other options, sour and soft, do not accurately describe bases.

Front

Bases have a ________________ taste.

Back

bitter

Answer explanation

Bases are known for their bitter taste, which distinguishes them from acids that typically taste sour. Therefore, the correct answer is 'bitter'.

Front

An is a base that dissolves easily in water.

Back

alkali

Answer explanation

An alkali is a type of base that readily dissolves in water, producing hydroxide ions. In contrast, acids do not fit this definition, and aspirin is a medication, not a base.

Front

What gives off very strong burning vapors?

Back

Detergent

Answer explanation

Detergents contain volatile compounds that can produce strong burning vapors, especially when heated. In contrast, ammonia and hydrogen do not typically emit such strong vapors in the same context.

Front

Drain cleaners contain a powerful base called ________________. Options: lye, vinegar, baking soda, ammonia.

Back

lye

Answer explanation

Drain cleaners often contain lye, a strong base that effectively breaks down clogs. Other options like vinegar and baking soda are not strong enough, while ammonia is a different type of cleaner.

Front

_______ was a base used to relieve pain.

Back

alkali

Answer explanation

Alkali was historically used as a base to relieve pain due to its chemical properties. Other options like bitter, hyssop, and gall do not specifically refer to a base used for pain relief.

Front

A strong base is used to dissolve wood chips into _________________. Options: pulp, sawdust, fiber, resin

Back

pulp

Answer explanation

A strong base is used in the pulping process to break down wood chips into pulp, which is the primary material for making paper. The other options, like sawdust and resin, do not accurately describe the result of this chemical process.

Front

Acids have a ________________ taste.

Back

sour

Answer explanation

Acids are known for their sour taste, which is a characteristic feature. This distinguishes them from sweet, bitter, and salty flavors, making 'sour' the correct choice.

Front

Rust is an ______ of iron and oxygen.

Back

oxide

Answer explanation

Rust is a compound formed from iron and oxygen, specifically known as iron oxide. Therefore, the correct answer is 'oxide', not 'acid'. 'Acid' refers to a different category of chemical compounds.