Arrange the following atoms and ions in order from smallest to largest radius K+, Ca2+, S2-, Cl-, Ar+

Evaluate this exponential expression,8. (2 + 3)2 – 42

Gymnast always perform on padded mats. how does the mats protect the gymnast

Achemist 16 drop copper metal from copper chloride solution. the chemist place is 0.50 g of aluminum foil in a solution containing 0.75 g of copper (ii) chloride. a single replacement reaction takes place. which statement explains the maximum amount of copper that the chemist can extract using this reaction?