Urgent ! An ionic compound X2Y contains two ions, X+ and Y2-.

Which group is each ion in?

X+

y2-

What is the molecular formula of a hydrocarbon with m+ = 166? (write the formula with no subscripts, e.g. c4h10.) what is the sum of rings and double bonds in this compound?

If the density of water is 1.0 g/cm3, which of these materials would float in water, based on their densities? check all that apply. aluminum cork iron lead wax

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