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CH4 (g) yields C(g) + 4H (g) (reaction for expansion) Compare the reaction for the "expansion" of methane with the reverse of the reaction that represents the standard enthalpy of formation. Which properties are the same for both reactions and which are different? the number of atoms of each element, the state of the methane molecules, the enthalpy change of the reaction, the state of the carbon atoms.
Calculate the total mass of reactants and products in each of the following equations: a) 2Al(s)+3Cl2(g)--->2AlCl3(s); b) 4HCl(g)+O2(g)--->2Cl2(g)+2H2O(g).
One molecular form of elemental sulfur is a ring of eight sulfur is a ring of eight sulfur atoms. As one molecule of this element is burned to make sulfur trioxide, how many oxygen molecules are used?
AS you get to the mountains the temp drops to -1C and 0.70 atm. If the volume of air in the tires is 12L when you left the city, what will it be in the mountains
For the titration of 87.95 mL of 0.1311 M NaOH with 1.2586 M HBr, find the pH equivalence point (ve) in mL of the solution within the receiving flask when 0 mL of HBr is added.
Tums calcium carbonate reactswith stomach acid ( HCI) according to the reaction below. One tablet of tums contains 500.0 mg CaCO3. If one tablet of tums is addedto 20.0 mL 0.100M HCI, how many grams of CO2 gas are produced?
The neutrons interact with with 6Li to produce tritons (nuclei of 3H), which, in turn, interact with the oxygen to produce 18F. What are the two nuclear reactions?
A sample advertised as pure fructose obtained at a health food store, is analyzed as follows: a 22.5 gram sample is dissolved in 50.0 mL distilled water and the solution is allowed to slowly equilibrate for one hour.
Determine the amount of energy or work that the silicon nitride tip could absorb before being plastically deformed, assuming no initial cracks. Volume is in part A.
A 2.00L buffer solution is 0.250M in HC2H3O2 and 0.250M in NaC2H3O2. Calculate the pH of the solution after the addition of 0.100 moles of solid NaOH. Assume no volume change upon the addition of base.
For exemple, the internuclear distance in NaCl(g) is 2.3606 angstrom, whereas in NaCl(s) the shortest Na-Cl distance is 2.814 angstrom
What volume of H2 (at 25oC and 1.00 atm ) can be produced by reaction of 161 g Fe and 202 g of HCl? (Atomic weights: Fe = 55.85, Cl = 35.45, H = 1.008).
During the initial stages of method development, the researcher was unable to separate anthracene and naphthalene with baseline resolution. From the options below, select all possible modifications the researcher could make to improve the resoluti..
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