It has to be D. I know the vapor pressure has to do woth the solvent. that is what the pressure is calculated from
Acidity I believe...sorry if I'm wrong just got on the subject
Answer:
Borax is a natural mineral with a chemical formula Na2B4O7 • 10H2O. Borax also is known as sodium borate, sodium tetraborate, or disodium tetraborate. It is one of the most important boron compounds. The International Union of Pure and Applied Chemistry (IUPAC) name for borax is sodium tetraborate decahydrate.
Answer:
Option D. 0.9mol x 2mol Fe /3mol CO2 x 55.845g Fe /1mol Fe
Explanation:
The balanced equation for the reaction is given below:
3CO + Fe₂O₃ → 2Fe + 3CO₂
Molar Mass of Fe = 56g/mol
From the balanced equation above,
3 moles of CO2 produced (2 mol Fe x 55.845g Fe.
Therefore, 0.9 mole of CO2 will produce = 0.9mol x 2mol Fe /3mol CO2 x 55.845g Fe /1mol Fe
Answer:
Ca is more reactive because it has a lower
ionization energy than Mg. This is because it is lower in the periodic table. The added central electrons added over the extra period provide shielding in the center of the atom