4.) D
10.) C
12.) D
13.) D
14.) D
15.) D
Answer:
% comp. H = 2.8%, % comp. Cl = 97.2%
Explanation:
HCl mass = mass of H + mass of Cl
HCL mass = 1.00794 + 35.453 = 36.46094
% comp. of H = 1.007694 / 36.46094 x 100 = around 2.8% (2.76376308455)
% comp. of Cl = 35.453 / 36.46094 x 100 = around 97.2% (97.2355622208)
Lesser. atomic number means proton number
It means <span>a substance formed by chemical union of 2 or more elements or ingredients in definite proportion by weight.</span>
