Which chemical substance has the highest melting point? a) gold b) water c) oxygen d) mercury

Which of the following is always a reactant in a combustion reaction? oxygen nitrogen hydrogen carbon

At 300 mm hg, a gas has a volume of 380 l, what is the volume at standard pressure

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.