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Explain why the following reaction occured using the vocabulary cation, anion, ionization energy, and electronegativity. Na2C2O4+CaCl2 = CaC2O4+2NaCl
a 10.0 g piece of metal at 100 degree celsius is transferred to a calorimeter containing 50.0 ml of water initially at
Assuming that a particular individual's stomach contains 1 quart of 0.1 M HCl, and that an antacid tablet contains as its active ingredient 500 mg of calcium carbonate, what would the final pH of this individual's stomach contents be after taking ..
The mole fraction of oxygen molecules in dry air is 0.2095. What volume of dry air at 1.00 atm and 25°C is required for burning 1.00 L of hexane (C6H14, density = 0.660 g/mL) completely, yielding carbon dioxide and water
Some of the cyclohexane solvent vaporized during the temperature versus time measurement. Will this loss of cyclohexane result in its freezing point being recorded as too high
A piston has an external pressure of 14.0 . How much work has been done if the cylinder goes from a volume of 0.180 liters to 0.650 liters.
Determine how many moles of carbon dioxide should be combined to the system to bring the equilibrium carbon monoxide concentration to 0.715 mol/L?
Calculate the pH of a 0.50 M aqueous solution of NH3. The Kb for NH3 is 1.8 x 10-5.
A 235.0 ml sample of urine has a mass of 240.8 grams the specific gravity of the sample to three significant digits is
what is the equation for gypsum when it is heated below 220 degrees celsius and also when it is heated to red heat?
the heat energy required to melt 1.00 g of ice at 0degc is 333 j. if one ice cube has a mass of 62.0 g and a tray
A 21.8 g sample of ethanol (C2H5OH) is burned in a bomb calorimeter, according to the following reaction. If the temperature rises from 25.0°C to 62.3°C, determine the heat capacity of the calorimeter. The molar mass of ethanol is 46.07 g/mol.
Products at Home Containing Organic Molecules, Find two or more products in the home that contain organic molecules. From these products, make a list of 10 organic compounds present in the products.
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