The mass would be 63.1 grams
The equation ΔHsoln = ΔH1+ΔH2+ΔH<span>3 means that either the solution is endothermic (</span>ΔH < 0, the resulting reaction is cold) or exothermic (ΔH>0, the resulting reaction is hot). The lattice energy can be solve through this equation,
<span>lattice energy = </span>ΔHsolvation - IMF - ΔHsoln<span>
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Covalent compounds do not conduct electric current in a water solution well because they do not dissociate into ions.
I believe that the answer is B. The protons have a positive charge (pro=positive), neutrons have no charge because the are neutral (neutral=positive and negative), and electrons are negative
