Question

Hard water often contains dissolved [mg]2 ions. some laundry detergents contain sodium phosphate to soften hard water and to control acidity, thus making the detergent more effective. what solid product forms when aqueous solutions of sodium phosphate and magnesium chloride are combined

Answer 1

When an aqueous solution of sodium phosphate and magnesium chloride reacts with each other, sodium chloride and magnesium phosphate is formed as a solid product.

Balanced chemical reaction is given as:

$2Na_{3}PO_{4}+3MgCl_{2}\rightarrow 6NaCl+ Mg_{3}(PO_{4})_{2}$

Thus, the solid product formed is $NaCl$ and $Mg_{3(PO_{4})_{2}$.