There are how many grams of MgCl2 if there are 6.11 moles present.

Fred is studying a substance that is made out of only one element. this means that

Which fossil fuel is mainly used for heating and cooking? a. electricity b. coal c. petroleum d. natural gas

Two liquids are poured into a beaker. after a few seconds, the beaker becomes warm. which of the following best describes this reaction? a. an exothermic reaction b. a decomposition reaction c. an endothermic reaction d. a single-displacement reaction