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Balance the following equation, using the smallest possible integer coefficients. Then enter the 4 coefficients in the 4 answer boxes. (Suppose the coefficients were 6, 5, 4 and 3 for the 4 substances, from left to right in the equation.
Al2O3 + H2SeO4 ? Al2(SeO4)3 + H2O
what is the equation for gypsum when it is heated below 220 degrees celsius and also when it is heated to red heat?
What is the pH at the equivalence point of the titration and at the half equivalence point
gold has a density of 19.3 g/ml. Suppose you have 100.0 glonkins of gold. what volume in liters will the gold occupy. please use unit analysis 0.911 ounce per glonkin and 28.35 grams
What is the theoretical yield of vanadium that can be produced by the reaction of 40.0 g of V2O5 with 40.0 g of calcium based on the following chemical reaction?
A titration is performed on 1.3245g of a sample of a diprotic acid that is dissolved in 50 ml of water. if 44.10 ml of .6124 M NaOH is required to reach the end-point, what is the molecular weight of the diprotic acid
What molecule does most probable speed of 393m/s at 25*C? Also calculate the mean speed
A 15 mL sample of a solution of Pb(ClO3)2 was diluted with water to 19 mL. A 15 mL sample of the dilute solution was found to contain 0.027 moles of Pb2+. What was the concentration of Pb(ClO3)2 in the original undiluted solution.
The air in an inflated balloon (defined as the system) is warmed over a toaster and absorbs 115 J of heat. As it expands, it does 77 kJ of work. what is it change in internal energy for the system?
Carbon dioxide makes up approximately 0.04% of the Earth's atmosphere. If you collect a 2.0L sample from the atmosphere at sea level (1.00 atm) on a warm day
Using the given standard reduction potential, calculate the amount of OF2 that is produced, and the electrode at which the OF2 is produced, upon the passage of 0.240 faradays through an aqueous KF solution.
What is the total pressure on a 6.00 L flask which contains 0.127 mol of H2 gas and 0.288 mol of N2 gas at 20 degrees C. What is the molar fraction of H2 in the gas mixture
A 13.74 gram sample of an organic compound containing C, H and O is analyzed by combustion analysis and 20.49 grams of CO2 and 6.291 grams of H2O are produced.
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