22. Methane (CH4) contains 75% carbon. What percentage of methane is hydrogen? b. 6% c. 25% d. 33% a. 4% ​

The diagram below shows the movement of particles. what does this piece of evidence best support? the collision theory the maxwell-boltzmann distribution the effect of pressure on reaction rates the effect of temperature on reaction rates

8) warming your hands by a fire is an example if which heat transfer? a. conduction b. convection c. radiation d. none of these

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