Write the effect on pressure and volume for the problem listed below. P: = 4 atm
P2 = 2 atm
V1 =
V2 = 50 mL
Effect

Its the second one nonmetals are moldable and easily shaped 

Answer is: value of q is 5·10⁻⁶m.chemical reaction: mg²⁺(aq) + co₃²⁻(aq) → mgco₃(s).c(mg²⁺) = 2.5·10⁻³ m; concentration of magnesium cations.c(co₃²⁻) = 2.00·10⁻³ m; concentration of carbonate anions.q = c(mg²⁺)  · c(co₃²⁻).q = 2.5·10⁻³ m  · 2.00·10⁻³ m.q = 5·10⁻⁶m.q = 0.000005 m.

The answer your looking for is that both valance is 1 because they are both in the alkali group