To make sure that the white powder was all sodium chloride and not mixed with sodium hydrogen carbonate, would you need to add a little less or a little more hydrochloric acid to the reaction?

The agent of mechanical weathering in which rock is worn away by the grinding action of other rock particles is call

50 points! need answer asap. what type of organic compound contains the following functional group? (2 points)

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