Answer:
63.55 amu
Explanation:
(0.692 * 62.930) + (0.308 * 64.928) = 63.55 amu
Copper has two naturally occurring
isotopes: copper-63 (69.17%) and
copper-65 (30.83%).
Calculate the average atomic mass of
copper if the relative masses of the
isotope are copper 63 (62.93 amu)
and copper-65 (64.93 amu).
Cu-63 (0.6917 x 62.93 amu)
Cu-65 + (0.3083 x 64.93 amu)
Avg. mass = 63.55 amu
Explanation:
Hydrogen peroxide (H2O2) when decomposes forms water and oxygen in a reaction as shown below
However, this reaction is not completely balanced as number of oxygen atoms on reactant and product sides are not same
So, the complete balance equation looks like
Sugar is an organic compound and does not form ions in solution. Salt is mostly sodium chloride and forms negative Cl ions in solution and positive Na ions. These ions affect electrical conductivity making salt solution a good conductor of electricity. Pure water is not a good conductor of electricity, but an impurity such as salt increases its conductivity. Sugar solution does not enhance water’s electrical conductivity.
The salinity increases as the water freezes/evaporates. Glad to help!
