Question

Help plz

Answer 1

What number should be substituted for the question mark to balance the equation and why is that the correct number?

2C2H6 +?O2 → 4CO2 + 6H2O + heat

A.
The number 3 is needed to balance the equation. The right side shows 6 oxygen atoms, so the left side needs 3 oxygen atoms.

B.
The number 7 is needed to balance the equation. The right side of the equation shows 14 oxygen atoms, so the left side needs 7 × O2.

C.
The number 5 is needed to balance the equation. The right side shows 4 oxygen atoms in carbon dioxide and 6 oxygen atoms in water for a total of 10 oxygen atoms.

D.
The number 4 is needed to balance the equation. The right side of the equation shows 8 oxygen atoms, so the left side needs 4 × O2.

Answer 2

@Deadpool117

Answer 3

@Android17

Answer 4

Also, i taged myself

Answer 5

:3

Answer 6

sup dude

Answer 7

ok, idk waht it is

Answer 8

Its probably C, but Im gonna go with B

Answer 9

ok, C???@?@?@?@?@?@??!?!?!?!?! whats up wit ur C's...

Answer 10

1 second ill get one of my friends to help @Angelina4182

Answer 11

im good

Answer 12

what was the answer?

Answer 13

idk

Answer 14

i think its b