Polymers

Question 1

What are the three classes of compounds in food?

Answer 1

Proteins
Fats
Carbohydrates

Question 2

What are the first 6 alkanes and their formulas?

Answer 2

Methane CH4
Ethane C2H6
Propane C3H8
Butane C4H10
Pentane C5H12
Hexane C6H14

Question 3

What are the first two alkanes and their formulas?

Answer 3

Ethene C2H4

Propene C3H6

Question 4

What is a biofuel?

Answer 4

A fuel derived immediately from living matter

Question 5

What is a biological catalyst?

Answer 5

Enzymes (soluble protein molecules) that can speed up reactions in cells

Question 6

What are neutralization reactions?

Answer 6

Neutralization reactions occur when an acid and a base react to for water and salt.

Question 7

What is the Bromine test?

Answer 7

Bromine can be added to an alkane and it will turn red whereas when added to a alkene it will remain colourless

Question 8

What are the steps to finding an empirical formula?

Answer 8

Write down the elements
Write down the mass of each
Workout how much mole (m/Mr)
Divide by the smallest mole

Question 9

With makes up the moles pyramid?

Answer 9

Top= mass in question
Bottom left= number of moles
Bottom right= atomic mass

Question 10

How do you find how many molecules of a substance there is?

Answer 10

Mass x 6.02 x 10^23

n x Na = number of particles

Question 11

How do you find the number of mole?

Answer 11

Mass/ molar mass

Question 12

What is the stoichiometry process?

Answer 12

Write a balanced equation with mole ratios underneath
Write down known mole
Calculate unknown mole
Calculate mass of unknown