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A 1-L flask is filled with 1.30 g of argon at 25 degrees Celsius. A sample of ethane vapor is added to the same flask until the total pressure is 1.05 atm. What is the partial pressure of argon in the flask?
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Which noble gas is LEAST likely to react with fluorine?
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assume that H2O can be a base. Complete the balance equation NaOCH3(aq) + H2O(l)-->NaOH +
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Lewis structures for CH2NO2
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A student mixes four reagents together, thinking that the solution will neutralize each other. The solutions mixed together are 51.7 mL of 0.110 M hydrochloric acid, 102.4 mL of 0.213 M of nitric acid, 500.8 mL of 0.0101 M calcium hydroxide, and 201.7 mL of 0.114 M rubidium hydroxide. Did the...
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A chemist finds out that 3.0 g of sulfur added to 5.0 g of oxygen produces 8.0 g of sulfur trioxide. If a chemist combines 200.0 g of each element how much product will be produced and how much would be left over?
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A sample of an unknown metal has a mass of 35.4 and a volume of 3.11cm^3 .
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Which one of the following is a redox reaction? Answer A. 2Na(g) + Cl2(g) 2NaCl(s) B. Ba2+(aq) + SO42-(aq) BaSO4(s) C. Na2CO3(s) + 2HCl(aq) 2NaCl(aq) + CO2(g) + H2O(l) D. K2Cr2O7(aq) + 2KOH(aq) 2K2CrO4(aq) + H2O(l) E. H2O(l) H+(aq) + OH-(aq)
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how many grams of KMnO4 are needed to make .500 L of .0105 M KMnO4
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The goose has a mass of 22.4 lbs and is flying at 8.70 m/h (miles per hour). What is the kinetic energy of the goose?
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Sample Questions
- 1. For organic chemistry, what is a concerted shift? How do things like acids or heat affect them? What other factors affect them?
- 2. Which of the following reactions is an acid-base neutralization reaction? Why are the rest of the answers incorrect?
- A. AgNo3 (aq) + NaI (aq) --> AgI (s) + NaNO3 (aq)
- B. S8(s) + 8O2 (g) --> 8SO2(g)
- C. Na3PO4 (s) + 2H2O (l) --> H2 (g) + 2NaOH (aq)
- D. Ca (OH)2 (aq) + 2HI (aq) --> CaI2(aq) + 2H2O (l)
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