Chemistry of Water

Front

What is the chemical formula for water?

Back

H₂O

Front

Why does water have a polar nature?

Back

Water has a polar nature because the oxygen atom is more electronegative than the hydrogen atoms, resulting in a slight negative charge on the oxygen end and a slight positive charge on the hydrogen ends.

Front

What property of water allows it to dissolve most substances?

Back

Water is known as a universal solvent because of its ability to dissolve a wide range of substances due to its polar nature.

Front

What is the significance of water's high specific heat?

Back

Water's high specific heat allows it to absorb and release large amounts of heat without significant changes in temperature, which helps regulate climate and maintain stable environments.

Front

What happens to water when it freezes?

Back

When water freezes, it expands and becomes less dense, which is why ice floats on liquid water.

Front

What is cohesion in relation to water?

Back

Cohesion refers to the attraction between water molecules, which allows for phenomena such as surface tension.

Front

What is adhesion in relation to water?

Back

Adhesion is the attraction between water molecules and other substances, which allows water to climb up plant roots and stems.

Front

What is the pH level of pure water?

Back

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

Front

What is the role of water in biological systems?

Back

Water is essential for life; it serves as a solvent, a medium for chemical reactions, and helps regulate temperature in organisms.

Front

What is the difference between hard water and soft water?

Back

Hard water contains high levels of dissolved minerals, such as calcium and magnesium, while soft water has lower concentrations of these minerals.