Which reactions are oxidation-reduction reactions? Check all that apply. FeS(s) + 2HCl(aq) → H2S(g) + FeCl2(g) AgNO3(aq) + NaCl(aq) → AgCl(s) + NaNO3 2C3H6(g) + 9O2(g) → 6CO2(g) + 6H2O(g) Fe2O3(s) + 3CO(g) → 2Fe(l) + 3CO2(g)

Rocks, as they are compressed, begin forming mountains above the earth's surface when two continental plates converge. the continental crust increases in depth as the mountains grow above. the himalayan mountains formed at a convergent plate boundary in this manner. the rocks are smashed together causing them to due to the intense heat and pressure from the colliding plates and eventually forming rock. a) melt; igneous b) layer; sedimentary c) recrystallize; metamorphic d) melt into the earth's interior; metamorphic

Which statement names the physical property of wood a. wood is softer than coal b. wood does not rust c. wood can rot d. wood can burn

Which is true about metals used for jewelry, such as platinum and gold? a. they have low flammability. b. they have low reactivity. c. they have high flammability. d. they have high reactivity.