Acids & Bases

Front

What is an acid?

Back

An acid is a substance that donates protons (H+) in a solution and has a pH less than 7.

Tags

NGSS.MS-PS1-1

Front

What is a base?

Back

A base is a substance that accepts protons (H+) or donates hydroxide ions (OH-) in a solution and has a pH greater than 7.

Front

What is the pH scale?

Back

The pH scale measures 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 solution?

Back

A neutral solution has a pH of 7, meaning it is neither acidic nor basic.

Front

What happens when an acid and a base react?

Back

When an acid and a base react, they undergo a neutralization reaction, producing water and a salt.

Tags

NGSS.MS-PS1-5

Front

What is the pH range of acids?

Back

The pH range of acids is less than 7.

Front

What is the pH range of bases?

Back

The pH range of bases is greater than 7.

Front

What is heartburn?

Back

Heartburn is a burning sensation in the chest caused by stomach acid flowing back into the esophagus.

Front

What type of medicine helps relieve heartburn?

Back

Basic (alkaline) medicines help relieve heartburn by neutralizing stomach acid.

Front

What is an example of a common acid?

Back

Lemon juice is a common acid, with a pH around 2.