Water is made up of which two elements?

• Hydrogen and Helium

• Oxygen and Helium

• Sodium and Chlorine

• Hydrogen and Oxygen

Tags

NGSS.MS-PS1-1

A relatively weak bond between two oppositely partially charged sides of two or more molecules that helps to give water its properties is...

• Covalent bond

• Hydrogen bond

• Polar bond

• James Bond

Tags

NGSS.MS-ESS2-4

Water is considered a polar molecule because

• It can easily dissolve substances

• It has hydrogen bonds that stick between the oxygen and hydrogen atoms.

• The share of electrons between the oxygen and hydrogen is not equal.

• It doesn't have a slight charge

Tags

NGSS.MS-PS1-2

The ability for water molecules to stick to other substances

• Cohesion

• Surface Tension

• Solubility

• Adhesion

Water's cohesive tension on its surface that forms a "film" and causes the belly flop.

• Surface adhesion

• Surface stickiness

• Surface Tension

• Cohesion

Why is water considered the universal solvent?

• It is a polar molecule

• Its polarity allows it to dissolve many other substances.

• It is refreshing on a hot summer day

• It can be chemically dissolved

In a solution a solute is

• the substance doing the dissolving

• the substance that is mixed together

• A homogenous mixture with two or more substances

• the substance that is dissolved

Fill in the blanks: _______________have a pH less than 7, while a _______________has a pH greater than 7.

• Acid and base

• Base and acid

• Acid and water

• Base and water.

Water's unique property of sticking to other substances

• Cohesive

• Surface Tension

• Adhesive

• Polarity

The second largest amount of freshwater can be found in

• Icecaps and glaciers

• Ground water

• Ocean water

• Lake and rivers

Tags

NGSS.MS-ESS2-4