Answer:
Name of the compound is aluminum sulphate. chemical formula Al2(SO4)3
In that compound there are two aluminum atoms; three sulphur and 4*3=12 oxygen atoms.
2 oxygen atoms is equivalent to 1 mole oxygen.
so 12 oxygen is equivalent to 12÷2=6 mole oxygen.
Answer: 1) 2Na + MgF2 —> 2NaF + Mg. Explain: You first look at how many F are in each side, then balance it, and look at the rest of the elements and balance them. Answer: 2) Mg + 2HCl —> MgCl2 + H2. Explain: look at the number of Cl in each side, balance it, and check to make sure both sides have the same amounts of each element. Answer: 3) Cl2 + 2KI —> 2KCl + I2. Explain: first look at the number of Cl on each side, and balance it, then look at the number of K on each side, and balance it, then check to make sure both sides are equal.
Yeah 45 I think because the container is closed
M Fe2O3 = 160
so the answer is 1.44375 moles
