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Using the periodic table, arrange the atoms in each of the following sets in order of increasing electronegativity: a) CL, F, Br; b) B, O, N; c) Mg, F, S.
Seperate this redox reaction into its component half reactions( use the symbol e- for an electron)
what amount of heat would need to be added to 5.0 x 103 g of water to change its temperature from 21c to 84c?
Ben Franklin showed that 1.0 teaspoon of oil (5.0 cm3) can cover the surface of a still lake with area 0.50 acres
AgCl precipitates first. What is the concentration of the Ag+ remaining in solution when CuCl begins to precipitate? For AgCl, pKsp = 9.74. and for CuCl, pKsp = 6.76.
Consider the following first-order reaction: Reactant Product. This reaction has a half-life of 28.2 seconds. Calculate the rate constant.
Why do sigma bonds have lower energy than pi bonds and are stronger if bond strength increases with bond energy?
A zero-order reaction has a constant rate of 3.50×10-4 M/rm s. If after 65.0 seconds the concentration has dropped to 1.00×10-2 M, what was the initial concentration?
Determine the freezing point and calculate the final temperature if initially this iron nail was at temperature of 28 degree Celsius?
A tire has a pressure of 780 mmHg at 27°C. If the tire is heated to 47°C on hot pavement, what the new pressure will be:
A 34.32-g sample of a solid is placed in a flask. Liquid toluene, in which the solid is insoluble, is added to the flask so that the total volume of solid and liquid together is 96.44 ml.
which of the following indicators would be most suitable for the titration of acetic acid (pKa=4.74) with NaOh?
calculate the concentration of each diluted reactant in the 50.0ml volumetric flask. then calculate the concentration of each reactant in the reaction beaker before any reaction has occured.
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