1-propynyllithium reacts with (r, r)-2,3-dimethyloxacyclopropane in a stereoselective reaction. draw a curved arrow mechanism and the missing intermediate and product, clearly showing stereochemistry with a wedge and hashed bond at each stereocenter.

Nitrogen dioxide reacts with water to form nitric acid and nitrogen monoxide according to the equation: 3no2(g)+h2o(l)→2hno3(l)+no(g) part a suppose that 4.2 mol no2 and 0.50 mol h2o combine and react completely. which reactant is in excess? express your answer as a chemical formula. nothing

Type the letter that represents the correct location for each particle type below.

Scientists are often interested in knowing the molar heat of combustion – the heat released during the combustion of one mole of a substance. use the periodic table to find molar masses. how many moles of ethanol are present in the sample?