Which element is in Group 2 and Period 7 of the Periodic Table? A)
radium
B)
manganese
c)
magnesium
D)
Radon

Which of these will change if the air in aclosed bottle is heated? abcdthe mass of the airthe composition of the airthe air pressure in the bottlethe number of air molecules in the bottle

Write two balanced equations 1. dissolving of solid sodium hydroxide in water 2. the reaction of sodium hydroxide solution with hydrochloric acid

Select all of the methods through which a drug can enter your body. injection swallowing inhalation absorption