pH & Density Checkpoint

Front

What is pH?

Back

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

Front

What does a pH level below 7 indicate?

Back

A pH level below 7 indicates that a substance is acidic.

Front

What does a pH level above 7 indicate?

Back

A pH level above 7 indicates that a substance is basic.

Front

What is the pH of pure water?

Back

The pH of pure water is 7, which is considered neutral.

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.

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 of bleach?

Back

The pH of bleach is typically around 13, making it a strong base.

Front

What happens when an acid and a base are mixed?

Back

When an acid and a base are mixed, they undergo a neutralization reaction, producing water and a salt, resulting in a pH-neutral solution.

Front

What is the pH scale range?

Back

The pH scale ranges from 0 to 14.

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.