Answer C- NH4 is ammonium. Cl is chloride. Things ending in -ate or -ite have a certain number of oxygen molecules as well.
Only the second 2Fe + Al2O3 = 2Al + Fe2O3. In the first reaction iodide can not replace bromide from the salt. In the third reaction lead can not replace more active zinc metal from the salt.
Answer: B.22.4 liters
Explanation:
When we attribute to a certain fixed mass of a given gas a fixed number of molecules. Avogadro considered that the mass of 36g of oxygen at any temperature and pressure would have a fixed number of molecules to which he called 1 mol of molecules. So by definition 1 mole of molecules would have a number of molecules equal to that present in 36 g of oxygen. The occupied volume by one mole of molecules at a given temperature and pressure is called molar volume and consists in 22,4 Liters. The molar volume matches the Avogadro Hypothesis (created in 1811 by Amedeo Avogadro), where equal volumes of different gases, at the same temperature and pressure, have even number of moles.
<span>I would say : B ) Equilibrium always happens at the same point in the reaction no matter where you start.
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