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How does direct current break apart water molecule? Does the DC current fill the outer shell full of electrons making a weaker attraction so hydrogen seperates from oxygen?
Identify the elements that correspond to the following atomic numbers. label each as a noble gas ? a halogen ?an alkali metal? an alkaline earth metal? a transition metal? a lanthanide metal? or an actinide metala 17 b 4 c 63 d 72 e 2 f 92 g 55
caffeine is about 10 times as soluble in hot water as in cold water, a chemist puts hot water extract of caffeine in to an ice bath and some crystallizes. is the remaining solution saturated unsaturated or supersaturated and why?
In this reaction, we are actually measuring the rate of formation of the carbocation intermediate. It would be possible for the carbocation to proceed to a product other than the alcohol discussed in the Experimental writeup without changing out k..
The balloon ascends to an altitude of 20 , where the pressure is 76.0 and the temperature is 50. . What is the new volume, , of the balloon in liters, assuming it doesn't break or leak
A fuel with the potential to supplement if not replace gasoline, formed from the fermentation of surgars by the action of yeasy is called
describe the underlying concepts of how laboratory activity works. descreption should be at least half page
Determine the % error for the quantity (0.5022g+-0.3mg) 2. Determine the % relative error for the following quantities
What would be the value of the change in concentration of C10H12/change in time during the same period of time? Explain why a catalyst for a forward reaction must also be a catalyst for the reverse reaction. Include an energy level diagram
Hydrogenation reactions are used to add hydrogen across double bonds in hydrocarbons and other organic compounds. Use average bond energies to calculate DELTA Hrxn for the following hydrogenation reaction:
The two electrodes Cr/Cr+3 and Sn/Sn+2 are combined to afford a spontaneous electrochemical reaction. The standard reduction potentials (volts) for Cr+3 and Sn+2 are -0.74 and -0.14, respectively. Calculate E° for this reaction.
Describe how you prepare 5.00 times 10^2 mL of 0.7 M CuSO4. How many grams of CuSO4 are needed. How many significant figures are used for the mass. What type of container should it be made up in.
An experiment requires 43.0 of ethylene glycol, a liquid whose density is 1.114 . Rather than weigh the sample on a balance, a chemist chooses to dispense the liquid using a graduated cylinder. What volume of the liquid should he use?
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