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%
Answer:
1st = saturated
Explanation:
Bro first ka answer saturated he
Answer: a
Explanation:
Industry uses only about 18% while the others use around 70-90% of water.
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When magnesium ion doesn't give any characteristics colour with the flame test as electronic transisitons do not give out visible light.