Acids and Alkalis

Flashcards about acids, alkalis, and neutralization reactions.

What type of substance attacks and destroys living tissue?

Corrosive

What is a characteristic of a flammable substance?

Catches fire easily

What harmful effect can a toxic substance have?

Can cause death if swallowed, inhaled, or absorbed

What effect does an irritant have on skin?

An irritant will make skin red or blister, but is not corrosive.

What taste do weak acids have?

Sour

How do alkalis feel?

Soapy

What is caustic related to?

Burning skin damage

What is a base?

Insoluble, neutralizes acids, metal oxides/hydroxides/carbonates and hydrogen carbonates

What is the difference between dilute and concentrated acids?

Dilute acids have more water molecules compared to acid molecules, while concentrated solutions have more acid molecules compared to water molecules.

What is produced when acid reacts with metal?

Metal salt and hydrogen

What is produced when an acid reacts with a base?

Salt and water

What is produced when acid reacts with metal carbonate?

Salt, carbon dioxide, and water

Give two properties of acids

They taste sour and can be corrosive or irritating

Give two properties of alkalis

They feel soapy and can be corrosive or irritating

What does 'corrosive' mean?

Attacks and destroys living tissue

What does 'irritant' mean?

Not corrosive, but will make skin red or blister.

What is an indicator?

A substance that changes color to indicate the presence of an acid or base.

What happens to the pH of a solution of acid when an alkali is added?

The pH increases (moves towards neutral).

What happens to the pH of a solution of alkali when an acid is added?

The pH decreases (moves towards neutral).

What is salt?

A compound formed when an acid reacts with a base.

What types of salt do hydrochloric acid make?

Chlorides

What types of salt do sulfuric acid make?

Sulfates

What types of salt do nitric acid make?

Nitrates