Question

Please Explain this.

A compound contains 3 atoms of carbon and 8 atoms of hydrogen. It is combined in a reaction with oxygen molecules. The result is two end products of carbon dioxide (CO2) and water. Which element do we not need to be concerned about in balancing this equation?
oxygen
hydrogen
sulfur
carbon

Answer 1

@ash2326

Answer 2

can you write the equation?

Answer 3

I'll try.

Answer 4

ok,

Answer 5

you can write for the compound
\[C_3H_8\]

Answer 6

Ok thanx.

Answer 7

now try to complete the equation

Answer 8

Can you explain the steps please?

Answer 9

okay, so it says the compound reacts with molecules of Oxygen, notice that molecule is plural, so more than one molecule of oxygen. Now we know that oxygen's chemical symbols is O
but oxygen molecule or the gas we breath is O2
so the reactants should be
\[C_3H_8+xO_2\]
now I have mentioned x as we don't know the no. of molecules as of now

Answer 10

So Carbon, Hydrogen, and Oxygen.

Answer 11

So the answer would be Sulfur?

Answer 12

We are balancing the equation, do you know what is that?

Answer 13

Not really. I forgot honestly. Haha, sorry.

Answer 14

Ok, I'll explain with an analogy, suppose you have 5 oranges and 6 apples, you don't cut them and mix them in a container. In the mixture how many oranges and apples are there?

Answer 15

5 and 6

Answer 16

ok, are there any bananas in the mixture?

Answer 17

No.

Answer 18

so do you think sulphur can be the answer?

Answer 19

Yes?

Answer 20

Because its asking what we don't need to be concerned about. And since there's no bananas in here. lol

Answer 21

yes, you're right because it's not in the reactants,

Answer 22

Yay! Thanks!

Answer 23

Welcome :)