Sodium reacts with oxygen as represented by the equation:
4Na(s) + O2 (s) → 2Na2 O(s)
What mass of oxygen is required to completely react with 4.6 g of sodium?
4.6 g.
16 g.
1.4 g.
1.6 g.
How many moles of oxygen molecules are there in 250 cm³ of the gas at s.t.p?
0.001.
0.011.
0.010.
