What is the sequence of events in pyruvate decarboxylation?

Decarboxylation of pyruvate to an aldehyde
Formation of acetyl CoA
Regeneration of the oxidized FAD cofactor
Oxidation of aldehyde to a carboxylic acid
Reoxidation of the lipoamide cofactor

Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.

How have the greenhouse gasses increased from the year 2000 to 2018

4.25g sample of solid ammonium nitrate dissolves in 60.0g of water in a coffee-cup calorimeter, the temperature drops from 22.0 c to 16.9 c. assume that the specific heat of the solution is the same as that of pure water. calculate delta(h) (in kj/mol nh4no3) for the solution proces.