You cannot create something from nothing and similarly you cannot create less from more, if you didn't balance an equation that needs to be balanced, your product might end up equalling more or less than the total mass of the two elements combined. Which is impossible
Answer:
3
Explanation:
H2O has a higher intermolecular force (hydrogen bonding) where N2 only has London Dispersion.
Answer:
Molarity = 0.13M
Explanation:
n=m/M = 4.87/74.55= 0.065mol, V= 500ml= 0.5dm3
Applying
n= C×V
0.065= C×0.5
C= 0.13M
Explanation:
The volume of the copper block is:

The density of copper is 8.96 g/cm³
So the mass of the copper block is

or 126.44352 kg.