A molecule is the smallest part of A an element
B a compound
& a substance
D an atom

How many moles of air are there in a human lung with a volume of 2.4 l at stp? explain your answer

Match the name of the following compound:   mgso4  · h2omagnesium sulfate monohydratemagnesium (ii) sulfate monohydratemagnesium (ii) sulfate hydratemagnesium sulfate hydrate

If oil spills continue, all of the following should be expected except (2 points) death of aquatic life. polluted groundwater. decreased soil productivity. increased global temperatures.