A or B but i'm leaning more towards A
Pretty sure non polar bc it’s equal
A persons weight changes as he travels from earth to space but his mass remains the same
Answer:
The charge of an atom is the number of protons minus the number of electrons.
Answer: 4.4 x 10^-7
Explanation:
The dissociation equation for this reaction is:
MgCO3 (s) → Mg+2 (aq) + CO3-2 (aq)
(Here 0.08 >>> x )

So the solubility MgCO₃ in a solution that containing 0.080 M Mg²⁺ is 4.4 x 10^-7