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prepare the balanced chemical equation.
Mercuric oxide, HgO, is used to make the cathode of dry cell batteries.
_____ HgO à _____ Hg + _____ O2How many grams of oxygen would be released when 136.93g HgO decomposes?
Explain why acidic rain produced as a result of excess sulphur dioxide in the atmosphere can cause degradation of buidings.
A sealed container holds 1.00 mole of helium and 2.00 moles of nitrogen at 30.0°C. When the total pressure of the mixture is 666 mm Hg, what is the partial pressure of the nitrogen in mm Hg? Provide an answer correct to ...
A 10.00L tank at 8.9°C is filled with 7.86g of boron trifluoride gas and 7.09g of dinitrogen difluoride gas. You can assume both gases behave as ideal gases under these conditions. Calculate the mole fraction of each gas ...
Imagine you are performing a calorimetry experiment using a constant-pressure calorimeter. First, you calibrate the calorimeter using the reaction of KOH with HCl (enthalpy = -56.2 kJ/mol). Then, you use the calorimeter ...
Write the elemental symbol, with charge, for when Aluminum forms an ion and tell whether it is an anion or a cation. Think about whether it gains or loses electrons.
A 12.0 mL sample of a compound has a density of 1.44 g/mL. What is the weight of the sample in g?
What is the volume occupied by 29.1 g of argon gas at a pressure of 1.23 atm and a temperature of 399 K?
What volume of 3.84 M hydrochloric acid is required to consume 4.12 grams of zinc to form aqueous zinc chloride and hydrogen gas?
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).
Write three reactions for the oxidation of pyrite and explain how these can result in the production of acid waters that are enriched in trace metals and metalloids.
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