The reduction of pyruvate to form lactate occurs as a hydride ion (H:-) is added to C2 at the Si face, followed by protonation at the carbonyl oxygen. Draw the product of the reaction, showing the stereochemistry.

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

(1.6 × 10-19)(5.0 × 106) = c × 10d identify the missing numbers below to show the result of multiplying the numbers.

All of the following are part of the biosphere except