How many atoms of Oxygen (O) are there in the products of the following equation:

CH4 + 2O2 --> CO2 + 2H2O

4
1
2
3

Schrodinger and heisenberg developed an alternate theory about atomic nature that contradicted some of bohr's model of the atom. how do changes resulting from new technology and evidence affect the reputation of the atomic theory?

Calculate - analysis of compound composed of iron and oxygen yields 174.86 of fe and 75.14g of o. what is the empirical formula for this compound?

What is the compound name for the formula [ru(en)2cl2]2+ and [co(en)cl2br]-