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the following shows the connectivity of atoms only. Atoms other than carbon and hydrogen are labeled. how many degree of unsaturation are pressent in the compound. chose one of the following answers(a) 1 (b) 2 (c) 3 (d) 4
The vapor pressure of ethanol is 60.1 torr at 25.0 degree C, and its molar heat of vaporization is 39.3kj/mol. Estimate the temperature at which the vapor pressure of ethanol would equal 350. torr?
Some chemists believe that satisfaction of the octet rule should be the top criterion for choosing the dominant Lewis structure of a molecule or ion.
Water molecules change their states between the liquid and gaseous states. A.only when water vapour is saturated B.at all times becauseevaporation and condensationoccur any time C
Describe the mixture before it is centrifuged. Be specific using scientific words that aplly such as homogeneous or heterogeneous
Calculate the heat released when 156 g of water at 23.0 degrees celcius is convered to ice at -10.0 degrees celcius
Calculate the molecular weight of this gas if A sample of gas weighs 0.250 g and occupies a volume of 112 cm3 at STP?
Which of the following statements about the hydrohalogenation of 2-methyl-2-pentene with HCl is true? The halide ion acts as the electrophile in the second step of the reaction.
Calculate the standard free energy change for silver sulfate dissolution at 25 degrees Celsius.
Which of the following pairs of atomic orbitals on adjacent nuclei can overlap to form a sigma bond? Consider the x-axis as the internuclear axis
A suitable storage place must be geologically stable long enough for the activity of plutonium-239 to decrease to 0.1% of its original value.
The NaHCO3 is the limiting reactant and the HCl is the excess reactant in this experiment. Determine the theoretical yield of the NaCl product.
stock solution of Bovine Serum Albumin (BSA), diagram the most accurate procedure so you end up with at least 500 uL each of 5 ug/uL
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