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Question:
Compare the properties of elements and compounds. Give two examples of each, including one example that exists in the human body. Explain the atomic nature of one element and one compound found in human body.
an electrochemical cell is constructed in which both electrodes are made of platinum but in which one electrode is in
Copper has a density of 8.900 g/cm^3. How many centimeters cubes would be displaced If 35 kg of copper pellets were poured into a barrel of water
A certain brand of gasoline has a density of 0.67 g/ml. If a car has a gas tank compasity of 16 gallons, How many pounds of gasoline are in a full tank
The order of Stability of these carbocations (butane): Tertiary, Secondary, Primary. Is this order of stability consistent with Markovnikov's rule for the addition of hydrogen halides to alkenes
A gas is initially at 1.2 atm, 15.0 L, and O°C. What is the final pressure when the same amount of gas is heated to 10°C and the volume changed to 20.0 L
A mixture of a, b, and c gives three peaks in the GC with relative areas of 1:5.5:7.8, What is the percent composition of the mixture. (a walktrhough would be helpful)
Using the Sandmeyer reaction as one step, outline the steps necessary to prepare 4-bromotoluene, 4-iodotoluene, and 4-fluorotoluene from benzene.
A solution was analyzed using AA spec for Au. The signal was 150. This sample solution was placed in a 10 mL container and spiked with 2 mL of a 0.125 mM standard Au solution. The spiked solution returned a signal of 185.
A sample of sodium reacts completely with 0.426 of chlorine, forming 702 of sodium chloride. What mass of sodium reacted?
the specific heat of aluminum 0.22 calg degrees c. determine what would be the final temperature if thirty grams of al
What is the pH of a buffer solution of phenol and its conjugate base. [C6H5OH] = 0.11 M and [C6H5O]- = 0.80 M.
The electron in a hydrogen atom occupies a 6p orbital. What is the longest wavelength of light that can be emitted by this atom? Give answer in nanometres, nm
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