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Determine the amount of heat produced when 100g of CH4 combust, CH4 + 2O2 yields CO2 + 2H2O + 1063kJ
What is the balanced molecular equation for the reaction. What is the balanced complete ionic equation for the reaction. What is the net ionic equation. Which ions are spectator ions
Explain how a redox reaction involves electrons in the same way that an acid-base reaction involves protons.
Determine whether kinetic energy is being converted to potential energy, or vice versa, in the following process. a) Water cascades downward in a waterfall. b) Electrolysis of water produces H_2 and O_2.
A 0.5 M solution of hydrogen sulfide (H2S) contains 0.15 M nickel chloride NiCl2, and 0.35 M mercury nitrate Hg(NO3)2. The pH of this solution is made very acidic through the use of HCl so that all ions are in solution
As a reaction progresses backwards toward equilibrium K is the highest value Q attains. e) A reaction with no products present has an infinite Q value.
In one hour the average cockroach running at 0.08 km/hr consumed 0.80 mL of O2 at 1 atm pressure and 24°C per gram of insect weight.
If the decay of trihalomethane is first order,and 90% of the trihalomethanes in glass of tap water are gone after 3 hours, what is the decay rate constant
A sample of zinc nitride, Zn3N2, contains 39.0 g of zinc. How many nitride ions are present
Which of the following underlined items is not an intensive property (a) A chemical reaction reqyuires 3.00g of oxygen (b) Solid copper hydroxide is blue colored (c) the density of helium at 25degree celsius
Assuming that all of the sulfate and nitrate originated as acids. calculate the expected pH of this rain water.
in a coffee-cup calorimeter 1.50 g of nh4no3 is mixed with 76.0 g of water at an initial temperature of 25.00degc.
Calculate the concentration of NO3- ion remaining in solution.
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