Which equation shows an increase in entropy? (Look at the states of matter of the reactants and products)
А
C2H4(0) + H2(g) → C2H5(9)
B
CaCO3(9) + Ca(s) + CO2(g)
С
Fe(s) + S(s) + Fes(s)
D
2H2(g) + O2(g) + 2H2O(1)
PLEASE HELP ASAP

Which feature indicates that mars resides in the inner region of the solar system

How do we measure or think of speed in the united states?

Which describes an object in projectile motion? check all that apply.a.gravity acts to pull the object downb.the object moves in a straight path.c.the forward velocity of the object is 0 m/s.d.the object’s inertia carries it forward.e.the path of the object is curved.