Can you help me with this i don't think it is that hard i just have a lot on my mind.

There are main groups in the modern periodic table of elements

Which position represents spring in the southern hemisphere? a) b) c) d)

Calculate the molarity of each of the following solutions. part a) 0.12 mol of lino3 in 5.5 l of solution part b) 60.7 g c2h6o in 2.48 l of solution part c) 14.2 mg ki in 100 ml of solution