<span>It allows other scientists to check findings</span> is the most important reason to publish results as part of the scientific process.
The percent composition of each element can be calculated as follows:
% composition = (mass of element / total mass) * 100
The total mass of the quarter is given to be 5.670 grams
Mass of Cu = 5.198 grams
Mass of Ni = 0.472 grams
Substitute in the above equation to get the mass percentage of each element as follows:
% of Cu = (5.198/5.670) * 100 = 91.675%
% of Ni = (0.472/5.670) * 100 = 8.325%
An element or compound which occurs naturally in the earth is a mineral
Hypochlorous acid is a weak acid. The 
value for the dissociation of HOCl is 
