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Angel wants to make a necklace for a special lady. He wants to use multiple metals, as each has unique properties and colors. Should he put silver and cooper together in the necklace? Assume sweat is an electrolyte solution and that Angel does nor want the necklace to dissolve or oxidize. Explain your responses.
If .40 mol of H2 and .15 mol of O2 were to react as completely as possible to produce H2O what mass of reactant remains?
Given a stock solution of a food dye having a concentration of 1.0 x 10-5 and an absorbance of 0.700. If a new solution is made by diluting exactly 10.0 mL of the solution with exactly 44.4 mL of distilled water, what should the absorbance of the ..
At what volume of added acid is the calculated by working an equilibrium problem based on the initial concentration and of the weak base
Determine the concentration of a solution prepared by diluting 5.0 mL of a stock 2.50 M Ca(NO3)2 solution to 150.0 mL
Explain how many molecules of H2S are required to form 79.0 g of sulfur according to the subsequent reaction. Presume excess SO2.
A laser pulse with wavelength 555nm contains 4.40mJ of energy. How many photons are in the laser pulse.
A 70kg skier is going down a hill that is inclined at a 12 degree angle to the horizontal. the coefficient of kinetic friction between waxed skies and snow is .05. The force of the air resistance on the skier is 15.6N. find the skiers acceleration..
When comparing solutions of equal concentration, what is the relationship between the PH of an acid solution and the acid Ka
How does this work. Do you just omit the H20/Oh-. Calculate the value for the equilibrium constant for each of the following aqueous reactions.
A student poured the hydrogen peroxide unknown into a clean, wet erlenmeyer flask. The stdent thought that as long as the flask was clean, this preactice would not lead to an error in the results. Briefly explain.
Which possesses more energy a photon with a wavelength of 528 nm or a photon with a frequency
Determine the percent yield (with respect to CO2 and CH4) of the reaction if 1.25g of CO2 was formed by reacting 2.50g of CH4(g) with excess O2 in the reaction: CH4(G) +O2(g) ---->CO2(g) +H2O(g).
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