Help ASAP pls! If 1 atom of sulfur combines with 2 atoms of oxygen to form sulfur dioxide, what is the ratio of the mass of 1 sulfur atom to 1 oxygen atom?

1:1

Explanation:

SO2 contains 2 O-atom and one S atom.

Mass of O2 =2*16=32

Mass of S=32

Mass of S :O in SO2 =32:32=1:1

2h2o2--> 2h2o + o2

this reaction is of the spontaneous decomposition of hydrogen peroxide down into water and oxygen.

add 2 molecules of hydrogen peroxide and 2 molecules of water. since oxygen is naturally diatomic, the total number of atoms of each element is now the same on both sides of the equation so it is balanced.

this may not be entirely correct but let me know.