Which pair of elements below have a +3 ionic change?

n and p
al and ga
sc and y
i tried my best to understand what it is asking, but i'm pretty sure both sc and y, and al and ga have a +3 charge individually (+6 overall? ) and n and p have a -3 charge individually. i don't understand what this is asking, ? i'd like to understand this question.

At room temperature what happens to the average kinetic energy of the molecules of a solid, liquid, and a gas

When 13.3 g koh is dissolved in 102.7 g of water in a coffee-cup calorimeter, the temperature rises from 21.4 °c to 31.53 °c. what is the enthalpy change per gram of koh (j/g) dissolved in the water? * take the density of water as 1.00 g/ml. * assume that the solution has a specific heat capacity of 4.18 j/g*k. enter to 1 decimal place. do not forget the appropriate sign /(+). canvas may auto-delete the (+) sign

Astudent completes a titration by adding 12.0 milliliters of naoh(aq) of unknown concentration to 16.0 milliliters of 0.15 m hcl(aq). what is the molar concentration of the naoh(aq)? 1)5.0 m 2)0.20 m 3)0.11 m 4)1.1 m