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How many copper atoms and how many zinc atoms are in the penny provided? You will have to do some research to help with this one
7.04 g of CuNO3 is dissolved in water to make a 0.300 M solution. What is the volume of the solution.
Concentrated sulfuric acid is used as a catalyst for the esterfication of acetic acid in the preparation of isopentyl acetate. Why is the sulfuric acid needed if another acid,
if the experimenter uses a thermometer that reads 1.4C too high how will this affect the calculated molar mass.
Twenty-five milliliters of liquid nitrogen (density = 0.807g/mL ) is poured into a cylindrical container with a radius of 11.9cm and a length of 17.2cm . The container initially contains only air at a pressure of 760.0mmHG (atmospheric pressure) a..
Given the average bond enthalpies listed below, calculate the delta H for the reaction: N2 + 3H2 --> 2NH3
what pressure of O2 in a 500ml container at 30C is necessary for a reaction with 1.00g of H2 to produce H2O?
Assume that the volume of Earth's oceans is 137 x 10^7 km^3 and that the density of seawater is 1.03 g/cm^3. Also assume that the heat capacity of seawater is the same as that of water.
Lead metal is added to 0.100M Cr3+(aq), Pb(s) + 2Cr3+(aq) -> Pb2+(aq) + Cr2+(aq)
How many moles of hydrogen gas would be needed to react with excess carbon dioxide
when 1-bromo-2-methylhexane undergoes solvoysis in methanol, four major products are formed.
how are observations and testable experiments used to distinguish whether something is a theory
What is the pH of a solution which is 0.021 M in weak base and 0.039 M in the conjugate weak acid (Ka = 7.1 Ã- 10â€"6)? pH=?
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