Acids & Bases

Front

What is an acid?

Back

An acid is a substance that donates protons (H+) in a chemical reaction and typically has a sour taste. Examples include vinegar and lemon juice.

Front

What is a base?

Back

A base is a substance that accepts protons (H+) or donates hydroxide ions (OH-) in a chemical reaction. Bases usually have a bitter taste and slippery feel. Examples include baking soda and soap.

Front

What happens to litmus paper when it comes in contact with an acid?

Back

Litmus paper turns red when it comes in contact with an acid.

Front

What happens to litmus paper when it comes in contact with a base?

Back

Litmus paper turns blue when it comes in contact with a base.

Front

What is the pH scale?

Back

The pH scale is a measure of how acidic or basic a solution is, ranging from 0 (very acidic) to 14 (very basic), with 7 being neutral.

Front

What is a neutral substance?

Back

A neutral substance is one that has a pH of 7, meaning it is neither acidic nor basic. Water is a common example.

Front

What is the reaction of acids with carbonates?

Back

Acids react with carbonates to produce carbon dioxide gas, water, and a salt.

Front

What is the taste of acids?

Back

Acids typically taste sour.

Front

What is the taste of bases?

Back

Bases typically taste bitter.

Front

What is an example of a common household acid?

Back

Vinegar is a common household acid.