magnesium and calcium are in the same group on the periodic table. which sentence best explains why they have similar properties?

Concerning the 10.0 ml of 0.50 m nacl to 100 ml of solution: when a solution is diluted, does it change the number of moles dissolved?

Can someone me with questions 15 to 17 plz.

Turbo the snail moves across the ground at a pace of 12 feet per day. if the garden is 48 feet away, how many days will it take for the snail to get there?