Answer:
0.3706 moles of aluminum chloride would be produced from 10.0 g of aluminum
Explanation:
chemical equation:
2Al(s) + 3Cl2(g) → 2AlCl3(s)
Given data:
mass of aluminium = 10 g
mass of chlorine = 15 g
First of all we will calculate the moles of each reactant:
moles of aluminium= 10 g/ 26.98 g/mol
moles of aluminium= o.3706 mol
moles of Cl2 = 15 g/ 10.90 g/mol
moles of Cl2 = 0.2116 mol
now we compare the moles aluminium with aluminium chloride
Al : AlCl3
2 : 2
1 : 1
0.3706 : 0.3706
now we compare the moles chlorine with aluminium chloride
Cl : AlCl3
3 : 2
0.2116 : 2/3× 0.2116 = 0.1412 mole
although chlorine is limiting reactant but in question we are given excess chlorine so 10 g of aluminium will produce 0.3706 moles of aluminium chloride.
mass of AlCl3 = 0.3706 mol × 133.34 g/mol
mass of AlCl3 = 50.13 g
The first step to this question is finding the balanced chemical reaction.
H₂+1/2O₂⇒H₂O
Then you need to find the limiting reagent by finding the moles of each reactant then finding how much product each amount of reactants will form. The reactant that produces the least amount of product is the limiting reagent.
moles of H₂:
1g/(1g/mol)=1mol
moles of O₂:
10g/32g/mol=0.3125mol
moles of H₂O formed with amount of H₂:
1molH₂x(1molH₂O/1molH₂O)=1molH₂O
moles of H₂O formed with amount of O₂:
0.3125molO₂x(1molH₂O/0.5molO₂)=0.625molH₂O
Since less water is produced with the amount of oxygen given, oxygen is the limiting reagent and the moles of water formed from the oxygen is the moles of H₂O we will use to find the amount of H₂O produced.
0.625molH₂Ox18g/mol=11.25g H₂O
Subatomic particles are those particles which are smaller than the atom such as electrons, protons and neutrons.
Protons are positively charged particle whereas electrons are negatively charged particle with same magnitude.
Neutrons have about the similar mass as protons but without any electric charge (neutral).
The false statement for the subatomic particles are that some atoms don't have protons: All atoms contains three subatomic particles. Every atom must have protons otherwise atom doesn't exist.
The another false statement for the subatomic particles that the protons (positively charge) and neutrons (neutral) have charges of the same magnitude.
Answer is: Fluorine and chlorine, because they are both halogens.
Halogen elements are in group 17: fluorine (F), chlorine (Cl), bromine (Br) and iodine (I). They are very reactive and easily form many compounds.
In the gaseous state halogens form diatomic covalent molecules.
Halogen diatomic molecules (halogen means "salt producing") in the gaseous state in room temperature are fluorine (F₂) and chlorine (Cl₂).
Both molecules have single covalent bond and they are very reactive.
Halogens need to gain one electron to have electron cofiguration like next to it noble gas. For example, fluorine has 9 electrons and it gain easily one electron in chemical reaction to have electron configuration like noble gas neon (Ne) with 10 electrons.