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 lower pH value indicate?

Back

A lower pH value indicates a stronger acid.

Front

What does a higher pH value indicate?

Back

A higher pH value indicates a stronger base.

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that retain their individual properties and can be separated by physical means.

Front

What is an acid?

Back

An acid is a substance that donates protons (H+) in a solution and typically has a sour taste.

Front

What is a base?

Back

A base is a substance that accepts protons (H+) in a solution and typically has a bitter taste and slippery feel.

Front

What is the pH range of acids?

Back

The pH range of acids is from 0 to 6.

Front

What is the pH range of bases?

Back

The pH range of bases is from 8 to 14.

Front

What is the significance of pH in food quality?

Back

pH affects the color, taste, texture, and safety of food.

Front

What is the difference between elements and compounds?

Back

Elements are pure substances that cannot be broken down into simpler substances, while compounds are made up of two or more elements chemically combined.