Assuming that the gases are ideal calculate the amount of work done (in joules) in each of the following reactions. In each case, is the work done on or by the system? (a) The oxidation of one mole of HCl(g) at 2000C. 4HCl(g) + O2(g)  2Cl2(g) + 2H2O(g)
(b) The decomposition of one mole of nitric oxide (an air pollutant) at 3000C. 2NO(g)  N2(g) + O2(g)

i believe it is a.) released into

explanation:

lol idk man i guess u gotta ask bill nye the science guy

under a microscope, cancer cells may look very different from normal cells. they often have different sizes and some may be larger than normal while others are smaller. cancer cells are often abnormally shaped and the control centre of the cell (the nucleus) may have an abnormal appearance.

i think? ?

b. accuracy of the data matters alot more than its number of digits, organization or amount of detail. quantitative observation is more accepted than the qualitative observation.