Answer:
If you are not eye to eye with the miniscus you would be reading wrong because you have to read right from the middle because of you won’t you’d always be off
Explanation:
The solution for the question is the following:
NaCO3(aq) + CaCl2 (aq) --> CaCO3 + Na2Cl(aq)
Na 2+(aq) + CO3 -2 (aq) +Ca+(aq) + 2Cl-(aq) ---> CaCO3 + Na 2+(aq) + 2Cl-(aq)
Ca2+ (aq) + CO3 2- (aq) → CaCO3 (s) would be the balanced net ionic equation.
using the equation of formation of water:
H2+O2---->H2O
Balancing the equation,
2H2+O2---->2H2O
So now use the ratio from the balance equation, we know that 2 mol of H2 are producing 2 mol of H2O so the ratio will be 1:1.
So as 2 mol of H2O are produced by 2 mol of H2.
That implies 1 mol of H2O are produced by 1 mol of H2.
That is 0.253 mol of H2O are produced by 0.253 mol of H2.
Explanation:
It is known that more linearly the atoms are arranged in a carbon chain more will be its melting point. This is because then more surface area has been occupied by the molecule and in order to break all the bonds, heat energy has to reach to the entire surface area.
As a result, melting point of the compound will be high. On the other hand, more is the branching present in a carbon chain less will be the surface area occupied by it. Hence, smaller will be its melting point.
Therefore, in the given structures of (
) as the branching increases there occurs a decrease in melting point.
