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For what signs of ?H and ?S will a process be spontaneous at high temperatures but not at low temperatures? not be spontaneous at any temperatures
If a sodium hydroxide solution were added to a solution containing lead(II) ions, sodium ions, nickel(II) ions, and potassium ions, which ion(s) would remain in the supernatant? (Select all that apply.)
When a 1.50x102 g strip of zinc is dropped into a large beaker containing excess hydrochloric acid, how many grams of gas are formed?
Calculate the freezing point and boiling point of a soultion of 383g of glucose dissolved in 400. g of water.
A lab rat weighs 265g and absorbs 1.68x10^10 beta decay particles, each with ernegy of 2.20x10^-13 J. If relative biological effectiness is 0.75, what is the equivalent dose?
The formal charge on the P atom is zero and It is best described with three resonance structures.
At a certain temperature, a volume of 100 mL of saturated barium carbonate solution contains 0.00216 g of BaCO3 (MW=197.3 g/mol).
a steel tank with a volume of 9.583L contains N2 gas under a pressure of 4.972 atm at 31.8C Calculate the number of moles of N2 in the tank.
When you react ammonia with a halogenated alkane, will you get only one organic product?
Is ethanol(CH3OH) a bad leaving group. Also is (CH3)2N- a bad leaving group? the Nitrogen has two methyl groups and negative charge
Determine the % relative error for the following quantities: if there is no uncertainty given for a specific value, assume an absolute error of "1" in the last digit.
How many grams of water can be cooled from 45c to 15c by the evaporation of 65g of water? (The heat of vaporization of water in this temperature range is 2.4kj/g. The specific heat of water is 4.18j/k*mol .)
Which do you think would be larger and why? The first ionization energy, IE1, of Ne,The second ionization energy, IE2, of Na
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