Its A because there has to be a roman numeral to indicate which net charge of iron was used
Missing question: <span>A 5.00 L sample of O2 at a given temperature and pressure contains a 1.08x10^23 molecules. How many molecules would be contained in each of the following at the same temperature and pressure? </span>
a) 5.00 L H2.
<span>b) 5.00 L CO2.
Use </span>Avogadro's Law: The Volume Amount Law: <span>equal </span>volumes<span> of all gases, at the same temperature and pressure, have the same </span>number<span> of molecules. Because hydrogen and carbon(IV) oxide are gases, number of molecules are the same as number of oxygen molecules, so:
a) N(H</span>₂) = 1.08·10²³.
b) N(CO₂) = 1.08·10²³
Magnesium is a metal in group 2 of the periodic table in period three with a valency of 2 and reacts by loosing electrons. Magnesium cannot react with Aluminium because both of them are metals and react by loosing electrons thus no bond would be formed between them. Neon is a noble gas with an octet configuration thus will not react with magnesium. However, Magnesium will react with chlorine which is a non metal and reacts by gaining an electron thus forming an ionic bond.
To separate it you would use a type of powder or corn starch