Answer:
the molar mass is 40 and the metal is Calcium
Explanation:
X + H2SO4=X2SO4 + H2
The mole ratio is 1:1
no of mole of H2SO4= conc(M) × Vol(L)
=0.1×0.5
=0.05 mol
from the balanced chemical equation of the reaction
no of mole of 'X' = no of mole of H2SO4
thus no of mole of X=0.05 mol
Also, no of mole=mass/molar mass
molar mass of 'X'=mol/mass
=2/0.05
=40
B) 3 because there are three numbers
Answer:
Ice melts when heat is provided to it.
Explanation:
When heat is provided, the kinetic energy of the particles increases. The particles start vibrating. As you keep providing heat, the particles start vibrating more strongly and with greater speed. Some particles become so energetic, that they are able to break the force of attraction and move away as a liquid.
<em>Hope this helps.</em>
The best explanation would be that acid rain has dissolved the older statues over time.