7. What are the coefficients when the equation below is balanced? CH4 + 02 → __CO2 + H2O
A)1,2,1,2
B)1,3,4,1
C)1,2,3,4
D)2, 2, 1, 2

A

Explanation:

In order to balance an equation,the number of atoms of elements on the right side must equal the number of atoms of the same elements on the left side.After balancing the equation,C has 1 atom on both the left and right side,H has 4 atoms each on both sides of the equation and O has 4 atoms each on both sides of the equation,hence balanced.

they it depends on if one believes about radioactivity, they make a geiger counter beep but maybe it was going to beep anyway electronics do wierd things all the time or it was programmed to beep near certain metals.