Water Properties and Enzymes

The chemical compound of water is

• HO
• H₂O
• H₃O
• HO₂

The Hydrogen atoms in H₂O are positively charged

• True
• False

Tags

NGSS.MS-PS1-1

Water freezes at what temperature ?

• 0^o F
• 100^o C
• 32^o C
• 0^o C

Water boils at what temperature?

• 132^o  F
• 212^o C
• 100^o C
• None of the above

Water is a universal solvent

• True
• False

The ability of water to move through and around substances is called?  (Examples:  Water moving through a paper towel; water being transported from the roots to the top leaves of a tree.)

• Capillary action
• Cohesion action
• Concave action
• None of the above

Tags

NGSS.HS-ESS2-5

Why does Ice float?

• Ice is less dense than in water in liquid form.
• Ice is more dense than in water in liquid form.
• Ice has more surface tension
• None of the above

A solvent is...

• a substance into which the solute dissolves
• a compound being dissolved
• a substance that does not dissolve
• None of the above

What word describes when water is attracted to other substances?

• cohesion
• adhesion
• capillary action
• surface tension

Tags

NGSS.HS-ESS2-5

What two elements make up water?

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