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Flashcards in Hydrocarbons Deck (10)
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1

First 8 hydrocarbons in order and formulas?

Methane - CH4
Ethane - C2H6
Propane - C3H8
Butane - C4H10
Pentane - C5H12
Hexane - C6H14
Heptane - C7H16
Octane - C8H18

2

But-1-ene displayed formula?

H H H H
I I I I
H - C = C - C - C - H
I I
H H

3

But-2-ene displayed formula?

H H H H
I I I I
H - C - C = C - C - H
I I
H H

4

In the testing for alkenes, what are the colours of the alkane and alkene when bromine water is added to the substance?

Alkane - Orange
Alkene - Colourless

5

Difference between alkanes and alkenes?

-Alkanes are saturated HCs whereas alkenes aren't.
-Alkanes are compounds with a single bond between the atom whereas alkenes are compounds with one or more double or triple bonds.

6

What does a hydrocarbon + O2 go to?

HC + O2 -> H2O + CO2

7

General formula for alkanes and alkenes?

Alkane - x = 2n + 2
Alkene - x = 2n

8

Why is there no methene?

Because you need a double bond to another carbon atom and there's only one carbon.

9

Hydrocarbon definition?

A compound with hydrogen and carbon

10

Why are alkenes said to be unsaturated?

They can bond with more atoms