Science Homework!? Help!!!!!!!!!!!?

Question

What's the missing word on each of these sentences.
a) Hydrocarbons contain............... and carbon only.
b)When you burn Hydrocarbons, .................. make carbon dioxide and water.
c)............is a hydrocarbon used as a fuel in lorries.
d)The...........between petrol and oxygen gives out lots of heat and energy.
e)When a substance burns it joins with ........ oxygen from the air.
f)Mathane+oxygen---->...............dioxide=water
g)Methane (natural gas) burns to make water and carbon dioxide which escapes into the ...........
h)..........=oxygen----->rubidium oxide
i)When wax .......... it makes carbon dioxide and water
j)Hydrocarbons contain hydrogen and carbon............
k)..........is a gas in the air which does not take part in burning reactions.
Before you say that I am thick, I am only checking I have put the right answers.
Please Help.
XxXxXxXxX

Answer 1

a) Hydrocarbons contain............... and carbon only.
Hydrogen

b)When you burn Hydrocarbons, .................. make carbon dioxide and water.
the reaction will

c)............is a hydrocarbon used as a fuel in lorries.
Diesel fuel. (That's what we call it in the USA. I don't know if you still call it "petrol.")

d)The...........between petrol and oxygen gives out lots of heat and energy.
reaction

e)When a substance burns it joins with ........ oxygen from the air.
gaseous

f)Mathane+oxygen---->............
Carbon dioxide + water

g)Methane (natural gas) burns to make water and carbon dioxide which escapes into the ...........
atmosphere

h)..........=oxygen----->rubid... oxide
Huh?

i)When wax .......... it makes carbon dioxide and water
burns in air

j)Hydrocarbons contain hydrogen and carbon............
(period)

k)..........is a gas in the air which does not take part in burning reactions.
Argon.
(Your teacher probably wants you to say nitrogen -- but in some burning situations, oxides of nitrogen are produced).

Answer 2

a)Hydrogen
b) carbon,hydrogen and oxygen.
c)diesel.
d)reaction.
e)gaseous.
f)CO2 + H2O.
g)atmosphere.
h)rubidium + oxygen = rubidium oxide.
i)burns.
j)only.
k)nitrogen. (or argon or krypton or xenon..)

Answer 3

a)Hydrogen
b) carbon,hydrogen and oxygen.
c)diesel.
d)reaction.
e)gaseous.
f)CO2 + H2O.
g)atmosphere.
h)rubidium + oxygen = rubidium oxide.
i)burns.
j)only.
k)nitrogen. (or krypton or xenon..)

Answer 4

a) Hydrogen
g) atmosphere?
j)only

Answer 5

Alright. Give us your answers and we'll tell you if they're right.

Answer 6

K - Argon.