The equation below shows the decomposition of lead(II) Nitrate. How many grams of oxygen are produced when 35.9 g of NO2 is formed?
2 Pb(NO3)2(s) --> 2 PbO(s) + 4 NO2(g) + 1 O2(g)

If you add 10ml of hot water to 10ml of cold water and the change in tempature 8°c calculate how much energy is gained by the cold water

Free answer. the treaty of versailles ended world war i, but some of the terms of the treaty contributed to the beginning of world war ii. which was one of the terms of the treaty? the answer would be "germany was forces to pay reparations to the allied countries.". i hope this .

Avariable that is not being directly tested during an experiment should be changed varied experimented controlled