What are two types of cold air masses that influence the weather in North America? Name them and describe their humidity.

Why is it dangerous to take large doses of some nonpolar vitamins?

The periodic table is often to as the what calender

A chlorine atom has 7 valence electrons in its third shell. What will it do when forming an ion? a. gain 1 valence electron b. lose 1 valence electron c. gain 7 valence electrons d. lose 7 valence electrons

What is defined as the charge an atom would have in a compound if its bonding electrons were assigned to the more electronegative atom? a) reduction number b) valence c) oxidation number d) electropositivity

What is difference between creek, river and stream

Are energy levels and orbitals the same thing?

Heating devices can be made by passing an electric current through a conductor of: high resistance low resistance high conductivity low conductivity

What is the element 3O2 name

Why sulphur used for food preservation?

How would a solution that is labeled 5.0 molar be similar to one labeled 5.0 molal?