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A person preparing a fish tank uses boiled (and then cooled) water to fill it. When the fish is put into the tank, it dies. Explain.
Gaseous butane (C4H10) reacts with gaseous oxygen gas (O2) to produce gaseous carbon dioxide (CO2) and gaseous water (H2O) . If of water is produced from the reaction of 3.49 g of butane
A certain substance has a heat of vaporization of 37.43 kJ/mol. At what Kelvin temperature will the vapor pressure be 7.00 times higher than
concentrated aqueous hydrochloric acid, the major product obtained was 4-chloro-3,4-dimethyl-2-phenylhexane. Show the mechanism for this reaction.
The Specific Heat of a cooling oil is 1.75 J/g. How much heat energy is neededto raise he temp of 2.72 kg of this oil from 23 C to 191 C.
What role do the potassium chloride (KCl) and potassium sulfate (K2SO4) play in this experiment
At high temperatures phosgene (COCl2) decomposes to give carbon monoxide CO and Cl2. In a typical experiment, 0.631 g of COCl2 is injected into a flask of volume 472 cc.
student takes 116. g of BaCl2, and reacts it according to the following equation: 3BaCl2 + Al2(SO4)3 → 3BaSO4 + 2AlCl3 How many moles of AlCl3 are formed?
The rate constant (k) for a reaction was measured as a function of temperature. A plot of ln k versus 1/t (in K ) is linear and has a slope of ?1.13×10^4 K.
How many water molecules are in a block of ice containing 1.50 mol of water (H_2O)?
A 0.035L balloon is inflated to a pressure of 52.0kPa. What is the volume of the balloon if the pressure is decreased to 30.8kPa?
When we looked at assigning the electrons in nitrogen to sites in the 2s and 2p orbitals, we used the 2s anti-bonding site. Which statement about this site is not true?
The radioisotope iodine-131, used to image the thyroid, has a half-life of 8.0 days What fraction of iodine-131 remains in the body after 3.0 days?
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