Question

4 Na + O2
pls complete the following chemical equations ​

Answer 1

Answer:

4Na + O2 = Na2O

here we balance the equation as:

4Na & O2 are reactant

after reaction we got Na2O so,

we add 2 before Na2O cause it multiply with both them , 2(Na2O) = 2Na2O as we know that we can't add any variable on right side of elements Now yours answer is 2Na2o...