In the metric system, weight is a a. force b. mass c. pressure d. volume

Nuclear fusion is the source of energy for stars. besides hydrogen, which other element is most likely also common in stars?

Much of the general structure and physical properties of the interior of the earth are inferred from: a)deep oil and gas bore holes b)geologic investigations c)analysis of seismic waves d) study of volcanoes

3) in peaches, [oh]=3.16x10-11 m a) find [h+ ] b) what is the ph? c) is the solution acidic, basic, or neutral?