danielleanos23 danielleanos23
  • 08-03-2021
  • Chemistry
contestada

Which set of coefficients will balance this chemical equation?

__C2H4(g) + __O2(g) → 2CO2(g) + 2H2O(g)
2, 3
1, 3
1, 2
2, 5

Respuesta :

sa200
sa200 sa200
  • 08-03-2021

Answer:

B 1,3

Explanation:

Count the atoms on each side of the arrow, they have to be equal

After arrow

2x C

6x O

4x H

Before the arrow

2x C - correct, as it is the only compound with C then there must only be 1 mole of it.

This is also the correct amount of H

We need 6x O total so 6/2 = 3

So there are 3 moles of O

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