C6 Chemistry Out There

Question 1

What does electrolysis mean.

Answer 1

Splitting up with eclectrisity

Question 2

The amount of product made in electrolysis depends on what?

Answer 2

The number of electrons

Question 3

What is a fuel cells efficiency ?

Answer 3

Over 80%

Question 4

What does fermentation produce?

Answer 4

Alcohol and carbon dioxide

Question 5

What is the optimum conditions for a yeast fermentation reaction?

Answer 5

25-45 degrees c

Question 6

Hydration of ethene chemical reaction

Answer 6

Ethene + water= ethanol

C2 h4 + h2o = c2 h5 OH

Question 7

Reaction of CFCs

Answer 7

C cl2 f2 = uv light= c cl f2 free radical + cl free radical

Question 8

Name 4 properties of CFCs

Answer 8

Low boiling point
Non toxic
Inert non flammable
Soluble in water

Question 9

What is hard water, why is it hard?

Answer 9

Calcium and magnesium ions dissolved in it

Question 10

How to remove temporary hardness

Answer 10

Boil the water

Question 11

What is ion exchange resin?

Answer 11

It helps remove hardness of water. It flows over a solid rein which traps the magnesium and calcium ions.removes temp and per innate hardness.

Question 12

What is an unsaturated fat

Answer 12

A fat with a double covalent bond c=c

Question 13

What is a saturated fat?

Answer 13

A fat with a single covalent bond c-c

Question 14

Chemical equation for making soap

Answer 14

Fat + sodium hydroxide = soap + glycerol

Question 15

What part of a detergent is hydrophobic

Answer 15

The tail. It hates water

Question 16

What part of a detergents hydrophilic?

Answer 16

The head and it loves water

Question 17

What’s a solvent

Answer 17

A liquid that things are dissolved in

Question 18

Define solute

Answer 18

The substance being dissolved in the solvent

Question 19

Define solution

Answer 19

Solvent and solute together

Question 20

What type of reaction is a redox reaction?

Answer 20

A displacement one

More reactive metals displace less reactive ones.