Water Polarity and Universal Solvent

A water molecule is polar. Its bent shape results in the following...

• slightly positive charge on hydrogen and slightly negative charge on oxygen
• slightly positive charge on hydrogen and slightly  positive charge on oxygen
• slightly negative charge on hydrogen and slightly positive charge on oxygen
• no change because its neutral

Attractions between the negative Oxygen atom of one water molecule and the positive Hydrogen atom of another water molecule are called

• Covalent bonds

• Ionic bonds

• Hydrogen bonds

• Polar bonds

Explain the effect of water's polarity on its surface tension.

• Surface tension is decreased due to the cohesive forces between water molecules.

• Surface tension is not affected by water's polarity.

• Surface tension is increased due to the cohesive forces between water molecules.

• Water's polarity causes the surface tension to become neutral.

Tags

NGSS.HS-PS1-3

What type of compounds is water able to dissolve?

• ionic and polar covalent compounds.

• polar covalent and nonpolar covalent compounds.

• polar covalent compounds only.

• ionic compounds only.

Describe how ionic compounds dissolve in water.

• The cations are attracted to the oxygen in the water molecule

• The anions are attracted to the oxygen in the water molecule

• hydrogen bonds form between the ions

• The cations are attracted to the hydrogen in the water molecules

Why does water have a high specific heat capacity?

• Water's high specific heat capacity is due to its hydrogen bonds.

• Water's high specific heat capacity is due to its high density.

• Water's high specific heat capacity is due to its lack of polarity.

• Water's high specific heat capacity is due to its low boiling point.

The amount of energy required to raise the temperature 1ºC for every kilogram is called____?

• Thermal Energy
• Specific Heat
• Temperature
• Kinetic Energy

What happens to the density of water when it transitions to a solid state?

• It increases

• It decreases

• It remains the same

• It varies

Tags

NGSS.HS-ESS2-5

Why does ice float on water?

• Ice is less dense than water

• Ice is more dense than water

• Ice and water have the same density

• Ice and water have varying densities