Bonds, pH, Water Review CL mod

Front

What are the two subatomic particles found in the nucleus of an atom?

Back

Protons and Neutrons

Front

What type of bond involves the unequal sharing of electrons?

Back

Polar covalent bond

Front

Which substance has the highest concentration of H+ ions?

Back

Lemon juice with pH 2

Front

What property of water causes it to be attracted to the sides of a glass tube?

Back

Adhesion

Front

What is the role of buffers in the body?

Back

Buffers regulate body pH by releasing and capturing H+ ions.

Front

What is the pH scale used for?

Back

The pH scale measures the acidity or basicity of a solution.

Front

What is the pH of pure water at 25°C?

Back

The pH of pure water at 25°C is 7, which is neutral.

Front

What is a characteristic of a nonpolar covalent bond?

Back

In a nonpolar covalent bond, electrons are shared equally between atoms.

Front

What is the significance of hydrogen bonds in water?

Back

Hydrogen bonds give water its unique properties, such as high surface tension and specific heat.

Front

How does temperature affect the solubility of gases in water?

Back

As temperature increases, the solubility of gases in water generally decreases.