Answer:
Count the number of valence electrons
Explanation:
% mass of a solution is the mass of the solute present per 100 g of solution. It can be calculated using the formula,

Mass of solute = 4.92 g
Mass of solvent, water = 347 g
Total mass of solution = 347 g + 4.92 g = 351.92 g
Mass % of the solute = 
Therefore, the weight/weight % = 1.398 %
1016)(2.2<span> × </span>1010<span>) = A × </span>10B<span> A= B= Chemistry.</span>
Explanation:
NiCl2 + KOH = NiOH + KCl
since nickel is the primary element in nickel ii chloride, find the oxidation no of nickel in the compound and chlorine should have 2 as a subscription since the ii in the compound represents that nickel has an oxidation no of 2
The answer would be “adding the sum of”