Which chemical equation represents a synthesis reaction?A. HCl + LiOH → LiCl + H2OB.2Na + MgCl2 → 2NaCl + Mg. H2CO3 → H2O + CO2D. C + O2 → CO2

Which of these would be caused by a chemical change? a) the formation of lava. b) sedimantary rock layering over time. c) metamorphic rock forming from igneous. d) metamorphic rock eroding to form sedimentary rock.

According to the diagram, what sources contribute to the phosphorus found in soil? according to the diagram, phosphorus found in soil contributes phosphorus to what other sources?

An unsaturated hydrocarbon is a hydrogen-carbon compound with a. a network solid structure b. single bonds c. single bonds in a branched-chain structure d. double or triple bonds