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Write the reaction for the production of pure Calcium from Calcium Oxide using Aluminum as a reducing agent. Include whole number balancing coefficients
If you drop 25 g warm nails initial temp 65.4 into coffee cup calorimeter that contains 100.0 g water at 20 degrees Celsius, what will the temperature be.
What would happen to the A450 value for a smaple which include : 1mL of 0.0025M Fe(NO3)3 + 1mL of 0.0025M KSCN + 5.0mL of 0.1M HNO3 if you accidentally added 5 drops of disodium hydrogen phosphate
An air sample contains 0.032% CO2 (by mole). If the total pressure is 758mm Hg, what is the partial pressure of CO2
How many grams of Cl2 can be prepared from the reaction of 16 g of MnO2 and 30 g of HCl according to MnO2 + 4 HCl = MnCl2 + Cl2 + 2H2o
An unknown compound burned with a yellow, nonsmoky flame and was found to be insoluble in 5% sodium hydroxide solution but soluble in concentrated sulfuric acid.
When the gas is not flowing, the pressure is the same everywhere in the pipe. How high above the bottom of the manometer would the mercury be in the arm connected to the pipe?
If 0.015 M NaCl shows conductivity of 12,000 units, based on "total ion concentration" what conductivity should be observed for 0.015 M K2SO4
How many moles of HC2H3O2 are diluted to 59.37 mL? B)What is the Molarity of the diluted solution? What is the concentration after the dilution of the following?
When ammonium chloride, NH4Cl, dissolves in water, the temperature of the solution is found to be less than that of the original water sample.
If a sodium hydroxide solution is prepared by dissolving it in a volumetric flask and diluting to the line with mixing, will the level be on the line, below the line, or above the line on the following day?
a sample of sodium hydrogencarbonate, NaHCO3 is contaminated with 5-10% NaCl. How should i carry out an experiment to determine the percentage purity of NaHCO3 ?
Calculate the pressure in the mindanao trench. depth = 11.5 km and the average mass density of sea water
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