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1) Half reactions: For the given formula what is the oxidation and reduction.
3 Mg + N2 → Mg3N2
2)If 90.0 mL of 0.150 M CaCl2 is added to 40.0 mL of 0.100 M AgNO3, what is the mass in grams of AgCl precipitate?
3)Iron(II) can be oxidized by an acidic K2Cr2O7 solution according to the net ionic equation.
Cr2O72- + 6 Fe2+ + 14 H+ 2 Cr3+ + 6 Fe3+ + 7 H2O
If it takes 50.0 mL of 0.0250 M K2Cr2O7 to titrate 30.0 mL of a solution containing Fe2+, what is the molar concentration of Fe2+?
An industrial vat contains 2,500 liters of an acidic aqueous solution with a pH of 3.5. How many grams of NaOH need to be added to raise the pH to 4.3?
Molecules can be as small as a few atoms or as large as thousands of atoms. In 1962, Max F. Perutz and John C. Kendrew were awarded the Nobel Prize for their discovery of the structure of hemoglobin
A 771 mL gas sample at STP is compressed to a volume of 242 mL, and the temperature is increased to 31?C. What is the new pressure of the gas in Pa
How many types of nonequivalent protons does the following compound contain
How many grams of Ammonium phosphate need to be combined to 500 and
A solid mixture contains MgCl2 and NaCl. When 0.5000 g of this solid is dissolved in enough water to form 1.000 L of solution, the osmotic pressure at 25°C
22.3 g of a substance X dissolves in enough water to make 0.507 L of a 0.779 M solution. Calculate the molar mass of X in g/mol.
At a certian temperature and pressure, chlorine molecules hav an average velocity of 0.0610m/s. What is the average velocity of sulfur dioxide molecules under the same conditions.
Occupies 6.0 cubic meters at a pressure of 1.5 atm. The pressure is then expanded to 2.0 atm. The temperature remaining constant, what is the new volume of the gas?
how many grams of iron will react with water to form iron (III)oxide and 85 liters of hydrogen gas at 19 degrees celsius & 525 torr?
Select all of the correct statements about reaction rates from the choices below. The lower the rate of a reaction the longer it takes to reach completion.
How many grams of F2 are needed to produce 157 g of PF3 if the reaction has a 79.8% yield?
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