Bonds and Properties of Water

What two elements make up water?

• Helium and oxygen
• Hydrogen and oxygen
• helium and carbon
• oxygen and carbon

Tags

NGSS.MS-PS1-1

Which end of the water molecule has a slightly positive charge?

• the oxygen end
• the hydrogen end
• both ends are slightly positive
• neither end is positive

What word describes when water is attracted to other substances?

• cohesion
• adhesion
• capillary action
• surface tension

When water molecules stick easily to other water molecules, this is called what?

• cohesion
• adhesion
• solution
• polar molecule

Water is a universal solvent because it...

• It can be found anywhere
• It freezes when it gets cold
• floats when frozen
• Dissolves most substances

What is the attractive force between two bodies of different substances that are in contact with each other? This is the property of a water molecule that allows it to stick to other substances.

• adhesion

• cohesion

• specific heat

• universal solvent

What is the force that holds molecules of a single substance together and its the property of water that allows one water molecule to stick to other water molecules?

• cohesion

• adhesion

• specific heat

• universal solvent

The __________________ is a property of a system in which two points have opposite characteristics, such as charges (positive/negative) or magnetic poles.

• polarity

• opposites

• cohesion

• adhesion

Tags

NGSS.MS-PS2-3

A water molecule contains two hydrogen atoms and one oxygen atom. Which of the following statements about water molecules is true?

• The oxygen atom is negatively charged and the hydrogen atoms are positively charged.

• The oxygen atom is positively charged and the hydrogen atoms are negatively charged.

• All of the atoms have a negative charge.

• All of the atoms have a positive charge.

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Which end of the water molecule has a slightly positive charge?

• the oxygen end
• the hydrogen end
• both ends are slightly positive
• neither end is positive