If a solid residue remains after ethanol evaporation in step 9, is the residue sand, salt, or salicylic acid?

Elements that do not have full outer electron shells will donate, share, or take electrons from other atoms. choose the items that have the correct binary ionic formula.

Ahypothesis must be testable and falsifiable to be considered scientific a. trueb. false

What effect would average population growth have on land usage? a. urban use of land would rise to more than 30 percent of available land. b. industrial use of land would rise to more than 30 percent of available land. c. the percentage of available land used as cropland would stay the same. d. cropland would fall to about 10 percent of available land.