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It is possible to draw a valid Lewis structure that follows the octet rule for all of the following except one. Which one cannot be drawn without violating the octet rule?
A) NF3
B) BeH2
C) SO2
D) CF4
E) SO32?
Calculate the volume (mL) of a .150 M KOH solution that will completely neutralize 10.0mL of a 0.560 M H3PO4 solution?
how many liters of C6H14(l) measured at 20 degC must be burned to provide enough heat to warm 26.9m^3 of water from 17.7 to 32.6degC .
Calculate the number of grams of KClO3 needed to make 400 mL of 0.913 M solution.
A sample of hard water contains about 2.0x10-3MCa2+. A soluble fluoride-containing salt such as NaF is added to "fluoridate" the water. What is the maximum concentration of F- that can be present without precipitation CaF2? Ksp of CaF2=5.3x10^-11.
how to interpret hnmr spectra of 1-naphthol, why are the signals that occur more upfeild occuring more up feild. and likewise why are the signals occuring more downfield occuring downfield?
If the mixture of solid nickle(II) oxide and 0.20 M carbon monoxide is allowed to come to equilibrium at 1500 K, what will be the equilibrium
How much HCl gas can be produced at STP by reacting 198 g of NaCl with excess H2SO4?NaCl + H2SO4 ! NaHSO4 + HCl.
The label on an aerosol spray can contains a warning that the can should not be heated to over 130°F because of the danger of explosion due to the pressure increase as it is heated.
explain why only a catalytic amount of the radical initiator is required in a free radical-chain polymerization reaction
a 35.00 mL sample of NaOH solution is titrated to an endpoint by 14.76 mL of 0.4122M HBr solution, what is the molarity of the NaOH?
the density of an aqueous ethanol solution is .789 g/mol. How many grams of ethanol should be mixed with water to make 225mL to make a 4.5% ethanol solution?
what is the freezing pint of a solution when 13.55 g of Mg(NO3)2 is dissolved in 156 mL of water when Tdegree
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