How many grams of NO will be created when 55.0 grams of NH3 react with excess O2? NH3 + 02 - NO + H2O

Which type of bonding involves the complete transfer of a valence electron from a less electrogrative atom to a more electronegative one

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.

1) which of the following is the best example of a physical change? a) sugar dissolving in tea b) firefly glowing 2) in the combustion of ethane, what is/are the reactants? c2h6 + o2 ==> co2 + h2o a) c2h6 and o2 b) co2 and c2h6