IS Mod 5 Review

Front

What is a covalent bond?

Back

A covalent bond is a type of chemical bond where two atoms share electrons to achieve stability.

Front

How many electrons does nitrogen (N) need to gain for a stable outer shell?

Back

Nitrogen needs to gain 3 electrons to have a stable outer electron shell.

Front

What is the pH of pure water?

Back

The pH of pure water is 7, indicating it is neutral.

Front

What property of water allows it to heat up and cool down slowly?

Back

The property is due to hydrogen bonds that form between water molecules.

Front

What happens to the hydroxide ion concentration when a base is added to water?

Back

The hydroxide ion concentration increases, making the solution basic.

Front

What is the definition of an acid?

Back

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

Front

What is the definition of a base?

Back

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

Front

What is the significance of a pH of 7 in a solution?

Back

A pH of 7 indicates that the solution is neutral, meaning it is neither acidic nor basic.

Front

What is the role of hydrogen bonds in water?

Back

Hydrogen bonds give water its unique properties, such as high surface tension and the ability to stabilize temperature.

Front

What is the difference between an ionic bond and a covalent bond?

Back

An ionic bond involves the transfer of electrons between atoms, while a covalent bond involves the sharing of electrons.