3. Two elements R and S combine to form
the compound RS^2.Which of the following
statements is true?

A:An energy change occurs when RS2
is formed.

B :RS^2 will have a colour in between those of
R and S.

C:RS^2 have the properties of both
R and S.

D:The ratio of R:S atoms is 2:1.

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.