Which of the following is NOT a pure substance? Question 5 options: compounds table salt (NaCl) elements steel
1 answer:
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Answer:
Mg₃(PO₄)₂
Explanation:
This is a neutralization reaction between an acid and a base
The acid here is H₃PO₄
base is Mg(OH)₂
Every chemical reaction is made up of reactants on the left side and products formed on the right hand side of the expression;
3Mg(OH)₂ + 2H₃PO₄
→ Mg₃(PO₄)₂
+ 6H₂O
The reaction above is a double replacement reaction in which two ionic compounds gives an insoluble precipitate as a product when their ions displace one another in solution.
The solid formed is Mg₃(PO₄)₂