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A hard time understanding redox reactions, how would I balance this equation αCr2O2-7(aq)+βH+(aq)+γCu(s)→δCr3+(aq)+?H2O(l)+κCu2+(aq) I don't get it because its not the same as a regular balance.
Data: 2Ba(s) + O2(g) => 2BaO(s) ?H = -1107.0 kJ Ba(s) + CO2(g) + 1/2O2(g) => BaCO3(s) ?H = -822.5 kJ Given the data above, calculate ?H for the reaction below
Using the Balmer-Rydberg equation, calculate the wavelength in nm, when n=2 in the Lyman series. (R=1.097*10^-2 nm ^-1
the wall of a spherical tank of 1-m diameter contains an exothermic chemical reaction and is at 200oc when the ambient
Major Organic Product Formed of Acetyl Chloride Reacting with Reagents, What major organic product would you expect to be formed when acetyl chloride reacts with each of the following reagents?
Calculate the amount of hydrated sodium thiosulfate necessary to make 500mL of 0.025 M solution (remeber that the water molecules are included in the molecular weight of hydrated compounds.
Calculate the pH for a mixture of .050 M formic acid (HCO2) and .050 M hypochlorous acid (HClO)
How many mL of 0.380 M solution can be prepared by dissolving 4.00g of Ca(OH)2 in water?
How many grams of FeSO4 are there in 206 grams of an aqueous solution that is 14.0 % by weight FeSO4.
A chemist wishes to prepare 200mL of a saturated solution of BaF2, the concentration of which is 6.3 x 10-3 mol/L. Determine the mass of BaF2 that will be needed to make up the 200mL of the solution.
A balloon is filled with 35.0 L of helium in the morning when the temperature is 20.0 C. By noon the temperature has risen to 45.0C. What is the new volume of the balloon?
The activation energy of a certain reaction is 45.3kJ/mol . At 24{~}^{\circ}\rm C , the rate constant is 0.0160s^{-1} . At what temperature in degrees Celsius would this reaction go twice as fast?
Question- Part 1) How many photons of light at 633 nm would it take to increase the temperature of 1.00 L of water by 1.00 oC assuming that all the light energy was converted into heat energy. Assume 1.00 g/1.00 mL for the density of water
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