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1. HOw is a water molecule like a magnet?
2. Why do humans sweat and dogs pant? Explain the purpose and the reason it is effective?
3. Why is water consiered the "universal solvent?"
According to the following reaction, how many grams of sodium hydroxide will be formed upon the complete reaction of 27.5 grams of water with excess sodium?
How many grams of water are formed when 5.00 g of butanol combust with excess oxygen according to the reaction shown below?
an empty vial has a mass of 67.77 g. if the vial has a mass of 244.56 g when completely filled with liquid carbon
Calculate the frequency (in Hz) of light necessary to move an electron in a He+ ion from the n =2 to n =4 energy level. The Rydberg constant for a helium ion is R = 4.390 x 107 m-1
A local radio station can be tuned in by dialing your radio to a frequency of 101.5 MHz. Calculate the energy of the wave.
Draw the Newman projection of all staggered and eclipsed conformations around the C3-C4 bond of hexane (CH3CH2CH2CH2CH2CH3).
A wooden artifact from a Chinese temple has a 14C activity of 34.3 counts per minute as compared with an activity of 58.2 counts per minute for a standard of zero age. From the half-life for 14Cdecay, 5715 yr determine the age of the artifact.
Acrylonitrile, C3H3N (53.07 g/mol), is used in the synthesis of a variety of plastics. What mass of acrylonitrile can be produced from a mixtur.
the chemical reaction between reagents supplied from an outside source. What is the emf of a cell fuelled by (a) hydrogen and oxygen, (b) the combustion of butane at 1.0 bar and 298 k.
In which one of the following species is the best Lewis structure a resonance structure. a. NH3 b. CO2 c. SF6 d. O2 e. CO32
In the laboratory experiment, as the 4-methylcyclohexene and water are being formed, they are constantly being disstiled from the reaction mixture into a separate receiving flask. Explain how this process helps the reaction proceed with a higher y..
The difference in the mercury levels in the two arms of the manometer was 11.8 cm. Atmospheric pressure was 783 mm Hg. The pressure of the argon in the container was __________ mm Hg.
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