Ineed ! i dont know what im doing. the thermite reaction between powdered aluminum and iron(iii) oxide,
2a1 + fe2o3
+ al2o3 + 2fe
produces so much heat the iron that forms is molten. suppose that in one batch of reactants 6.84 mol of al was mixed with 1.62 mol of fe2o3
calculate the number of grams of iron that can be formed from this mixture of reactants.

answer

i think the answer is a) as air pressure in an area increases, the density of the gas particles in that area decreases.

hope it

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

if it's not useful, feel free to report for mistake in answer.