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What is a peptide bond

Osteomalacia occurs due to the deficiency of 

4.94 Write the balanced chemical equation for the combustion of ethane, C2H6, and answer these questions. (a) How 
many molecules of oxygen would combine with 14 molecules of ethane in this reaction? (b) If 13.0 mol of oxygen 
is consumed in a reaction, how many moles of water are 
produced? (c) How many grams of ethane are burned if 
4.20 × 1022 molecules of CO2 are produced?

Compare the pH of the milk sample and the pH at which casein solid forms