The composition by volume of Hong Kong town gas is approximately 49.0% H2, 28.5% CH4, 3.0% CO and 19.5% other incombustible Calculate the volume of oxygen required to burn 100 dm of town gas. (Assume that the volumes of gases are all measured at the same temperature and pressure.)

Which statement is usually true about the relationship between activation energy and reaction rates? low activation energy barriers result in low rates. high activation energy barriers result in low rates. low activation energy barriers result in no reaction. high activation energy barriers result in no reaction.

Indicate whether the specified alkyl halides will form primarily substitution products, only elimination products, both substitution and elimination products, or no products when they react with sodium methoxide. 1-bromobutane 1-bromo-2-methylpropane 2-bromobutane 2-bromo-2-methylpropane

What is the mass of naoh that would have to be added to 500 ml of a solution of 0.20 m acetic acid in order to achieve a ph of 5.0?