Use tabulated electrode potentials to calculate δg∘ for the reaction. 2na(s)+2h2o(l)→h2(g)+2oh−(aq)+2na+( aq)

Scientist wants to react a barium chloride salt with an acid. to speed up the reaction, the scientist crushes the barium chloride salt until it is a fine powder. this speeds up the reaction by a. increasing the ph of the salt. b. increasing the surface area of the salt. c. increasing the pressure of the salt. d. increasing the temperature of the salt. im thinking more a not 100% sure

All cells are made of four types of acids, lipids, proteins, and carbohydrates.

How could a student test the effect of removing heat from a gas that is stored in a sealed container? what must occur in order for matter to change states?