What can be said about a reaction with H=-890 kJ/mol and AS= -0.24 kJ/(mol-K)? A. it is never spontaneous B. it is always spontaneous C. it is spontaneous at 2000 k D. it is at equilibrium at 371 k

Compare and contrast physical changes with chemical changes.

Word equation for k(s)+h2o(l) yield koh(aq) + h2(g)

Which statements are true concerning mineral formation? check all that apply. the slower the cooling, the larger the crystals. the faster the cooling, the smaller the crystals. crystals formed from magma are smaller than crystals formed from lava. minerals can only form in solutions when the solution is heated deep underground. when a solution cools, elements and compounds leave the solution and crystallize as minerals. minerals formed from hot water solutions can form narrow channels in the surrounding rock.