Mass of Oxygen: 0.0159 grams
Moles of Oxygen: 9.94x10^-4
To find the mass of oxygen, subtract the mass of copper from the total mass.

There are 0.0159 grams of Oxygen.
To find how many moles there are, divide the given amount of oxygen by the molar mass (atomic mass) of oxygen because that mass is the same as one mole of oxygen.
Molar mass of Oxygen: 16.00

There are 9.94*10^-4 moles of Oxygen.
Explanation:
0 is the odd one...............
and rest are metals and they lose electron and 0 gain electron and is non metal
Answer:
positive and negative
Explanation:
ik its prob not helpful now but ye sorry no ones answered lol