What metric units are volume, mass and length measured in?

Calculate the number of moles of ethane in 100 grams

What are fossils of organisms that existed over a wide area but only for a limited time period called?

The reaction below shows a system in equilibrium. how would a decrease in temperature affect this reaction? a. the rate of formation of the gases would increase. b. the equilibrium of the reaction would shift to the left. c. the equilibrium would shift to cause the gases to sublime into solids. d. the chemicals on the left would quickly form the chemical on the right.