Simple question. how many groups and how many periods are on the periodic table? which directions do they go?

State the formula for density in words and mathematical symbols

Which of the following is not a good technique for managing used oil? a) have specific, labeled catch pans available for technicians who are collecting oil b) spills in your shop and any releases on pavement or outside should be poured down a drain c) do not use oil containers for antifreeze or other non-similar fluids d) be prepared for oil spills with the proper absorbents

Agas can holds 2.0 gal of gasoline. what is this quantity in cubic centimeters?