Molar mass:
O2 = 16 x 2 = 32.0 g/mol Mg = 24 g/mol
<span>2 Mg(s) + O2(g) --->2 MgO(s)
</span>
2 x 24.0 g Mg -------------> 32 g O2
5.00 g Mg -----------------> ( mass of O2)
mass of O2 = 5.00 x 32 / 2 x 24.0
mass of O2 = 160 / 48
= 3.33 g of O2
hope this helps!
Answer:
how am i suppose to put it in largest to smallest if u didnt give any numbers
A synthesis would be A+B-->AB its combining, decomposition is AB-->A+B, its the breaking up of a substance.
Be-beryllium have 2 electrons and it is in the 2 nd period
Answer:
I guess 3 to be honest and that's what I think
