2Mg(NO3)2(s) --> 2MgO(s) + 4NO2(g) + O2(g) a 3.74x10^-2 sample of Mg(NO3)2 was completely decomposed by heating.
calculate the total volume, in cm^3, of gas produced at 333K and 100000Pa. give your answer to the appropriate number of significant figures.
The gas constant R = 8.31 J K^-1 mol^-1

5 marks

What happens when an atom of sulfur combines with two atoms of chlorine to produce sci2? a. each chlorine atom shares a pair of electrons with the sulfur atom. b. an electron is transferred from each chlorine atom to the sulfur atom. c. an electron is transferred from the sulfur atom to each chlorine atom. d. each chlorine atom shares all its valence electrons with the sulfur atom.

When the mercury level in a barometer decreases that atmospheric pressure has

Achemical reaction is done in the setup shown, resulting in a change of mass. what will happen if the same reaction is done in a sealed container that is placed on the electronic balance?