What kind of chemical reaction these equations represent. S+Cl2=SCl2
2C2H2+5O2=4CO2+2H2O
CH4=C+2H2

If a polyatomic ionic compound has gained two hydrogen ions, then how does its name begin?

Draw two cyclic constitutional isomers of cis-1

Which statement is true about the model of the electromagnetic spectrum a: it change the frequencies of light. b: it compare wavelengths of light. c: the color of light waves can be changed using the model. d: the intensities of light waves can be decreased using the model.