Answer I found online, I hope it helps!
In order to find mass when you have density and volume, you use the relationship
<span>Density=<span>MassVolume</span></span>
Explanation:
You multiply both sides of the equation by the volume and get:
<span>Mass =<span> Volume × Density</span></span>
Answer:
Oxidation no of nitrogen in N2O
let it be x
As oxidation no of oxygen is -2 and molecule is neutral that is no charge
So, 2x-2=0
2x= 2
x= 1
Oxidation number of Nitrogen=1
Add the reltive atomic mass of Ca and O which are 40 and 16 respectively after addition we get molecular mass of CaO which is 40+16=56 now divide atomic mass of O by molecular mass of CaO and multiply it with 100 as show n 16/56 *100=28.57%
Brass is comprised of copper and zinc.
Bronze is comprised of copper and tin.
