Unit 2

Question 0

What makes a saturated hydrocarbon different to an unsaturated hydrocarbon?

Answer 0

Saturated hydrocarbons have singe bonds whilst unsaturated carbons have a double bond

Question 1

What is a hydrocarbon?

Answer 1

Hydrocarbons are compounds that contain carbon atoms and hydrogen atoms only.

Question 2

What are the three different types of formula used to represent hydrocarbons?

Answer 2

Molecular formula
Full Structural formula
Shortened structural formula

Question 3

Define a homologous series.

Answer 3

A homologous series is a series of compounds with similar chemical properties which can be represented by a general formula.

Question 4

Is a cycloalkane a saturated or unsaturated hydrocarbon?

Answer 4

Saturated, it contains only single bonds.

Question 5

What is an isomer?

Answer 5

Isomers are compounds with the same molecular formula but different structural formula.

Question 6

What formula can be used to calculate the energy of a fuel?

Answer 6

Eh = cm/\T

Question 7

What is an exothermic reaction?

Answer 7

An exothermic reaction is a reaction in which energy is released.

Question 8

What is an endothermic reaction?

Answer 8

An endothermic reaction is a reaction in which energy is taken in.

Question 9

What is the general formula for the Alkanes?

Answer 9

CnH2n+2

Question 10

What is the general formula for the Alkenes?

Answer 10

CnH2n