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What is the balanced reaction of sodium hydrogen carbonate + Sodium hydrogen sulphate?
calcium reacts with vanadium v oxide according to the following equation. how many grams of calicum oxide can be formed
if the reaction between iron iii ion and thiocyanate ion yielded an equilibrium concentration of .15m for each of these
A sample solution of vitamin E fluoresces with 643 units. The sample solution is spiked with 4.00 mg/L of vitamin E and the resulting is spiked with 4.00 mg/L of vitamin E and the resulting mixture fluoresces with 1092 units.
After the reaction comes to equilibrium, an additional 1.00g of O2(g) is added to the system. What is the expected partial pressure of SO2(g) then?
Explain an oxygen molecule has a mass of 5.3 x 10-26 kg. If the molecule is moving at 400m/s 1000 mpg with an uncertainty in velocity of 1 m/s, the uncertainty in position h=6.626 x 10-34 Js
Restricting yourself to straight-chain (unbranched) compounds, draw the structures of the possible constitutional isomers of pentene. There are two "variables" -- the position of the double bond; and cis/trans isomerization at that double bond.
an industrial process makes calcium oxide by decomposing calcium carbonate. which of the following is not needed to
A 475 mL sample of gas is collected over water at 27°C and a total pressure of 675 mm Hg. If the vapor pressure of water at 27°C is 26.7 torr, what is the volume of the gas sample at standard pressure?
A chunk of dry ice, CO2(s), weighing 6.9 g is sealed inside a 2 L soda bottle initially containing 1 bar of air. Explain what is the total pressure in the bottle after the dry ice sublimes as well as comes to 298.15 K
Suppose the elements X and Y form a compound that is 60% Y and 40% X (by mass). Define the atomic mass of X is twice that of Y
A student sets up two reactions. Reaction 1 uses 0.290 of reactant, and Reaction 2 uses 0.580 of reactant. How many times faster is Reaction 2 compared to Reaction 1. Express your answer as a multiple of the rate for Reaction 1 to three significan..
The addition of bromine to ethene in the presence of high concentration of chloride ion in an inert solvent results in the formation of 1,2-dibromoethane and 1-bromo-2-chloroethane. No 1,2-dichloroethane is obtained. Explain above experimental fac..
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