Question

what is the formula for magnesium chloride
□ mg2cl
□ mgcl2
□ mgcl

Explanation:

Magnesium has a +2 charge (Mg²⁺) and chlorine has a -1 charge (Cl⁻). To form a neutral compound, two chloride ions are needed for each magnesium ion.

Answer:

MgCl₂