Water

Question 1

Is oxygen slightly positively or negatively charged

Answer 1

Negative

Question 2

Is hydrogen slightly positively or negatively charged

Answer 2

Positive

Question 3

A water molecule is

Answer 3

Polar

Question 4

Water has no overall charge so is a

Answer 4

Dipole

Question 5

What is cohesion

Answer 5

When water molecules are near each other the oppositely charged parts attract each other forming bonds

Question 6

What does a high latent heat of vaporisation mean

Answer 6

It absorbs a lot of heat before it turns into water vapor

Question 7

What is adhesion

Answer 7

The polar nature of water allows it to attract other polar substances as well

Question 8

What does a relativity high specific heat capacity mean

Answer 8

It loses a large amount of heat before it’s temperature changes, can buffer changes in temperature

Question 9

Water is a

Answer 9

Universal Solvent

Question 10

Water is polar so it attracts

Answer 10

Polar Molecules

Question 11

Substances that dissolve in water are

Answer 11

Hydrophillic

Question 12

Substances that don’t dissolve in water are

Answer 12

Hydrophobic

Question 13

What is water

Answer 13

A covalent compound made up of 2 hydrogen atoms covalently bonded to 1 oxygen atom

Question 14

Does water have surface tension

Answer 14

Yes

Question 15

What is surface tension

Answer 15

At the boundary between liquid and the air water molecules are arranged in an orderly fashion making it hard to break the surface

Question 16

Is the solid or liquid form of water more dense

Answer 16

Liquid

Question 17

Why is ice less dense then liquid water

Answer 17

As the water molecules arrange themselves to form a hexagonal structure when they freeze, the water molecules are then further apart making it less dense

Question 18

Hydrogen bonds are weaker or stronger then covalent bonds

Answer 18

Weaker

Question 19

What bonds does water form with other water molecules

Answer 19

Hydrogen bonds due to water being a polar molecule

Question 20

Water is a good

Answer 20

Metabolite in lots of important metabolic reactions

Question 21

Water is a solvent which means that

Answer 21

some substances dissolve in it

Question 22

most metabolic reactions take place in

Answer 22

solution so water is pretty essential

Question 23

A molecule of water is one atom of oxygen joined to two atoms of hydrogen by

Answer 23

shared electrons