Practice 3.6 Polarity

Front

What type of bond is present in water molecules?

Back

Polar Covalent Bond

Front

What is the main reason water is known as the universal solvent?

Back

Water can dissolve many substances due to its polarity.

Front

What is polarity in molecules?

Back

Polarity refers to the distribution of electrical charge over the atoms joined by the bond.

Front

Which part of the water molecule is negatively charged?

Back

The Oxygen atom.

Front

What is a nonpolar molecule?

Back

A molecule that does not have distinct positive and negative poles.

Front

Why can water dissolve ionic compounds?

Back

Water's polarity allows it to surround and separate the ions.

Front

What is an example of a nonpolar substance?

Back

Oil.

Front

How does the polarity of a molecule affect its melting point?

Back

Polar molecules generally have higher melting points than nonpolar molecules.

Front

What happens to the solubility of a substance in water if it is nonpolar?

Back

It will not dissolve in water.

Front

What is an example of a polar molecule?

Back

Water (H2O).