In order for the reaction 2A(s)+6HCI3(aq)+ 3H2(g) to occur, which of the following must be true?
A. AI must be above CI on the activity series
B. AI must be above H on the activity series
C. Heat must be supplied for the reaction
D. AICI3 must be a precipitate

Part of molten rock at mid-ocean ridges

Achemist has dissolved a certain substance in water. the chemist knows that more of the substance could be dissolved into the water before it stops dissolving. therefore

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.