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How many moles of bicarbonate ions, aluminum ions, and oxygen atoms are present in 26.0 g aluminum bicarbonate?
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where do i buy a large amount of uranium 235 for a science project?
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a carbohydrate that contains the elements carbon, hydrogen, and oxygen. complete combustionof .360 mg of glucose produced .528 mg carbon dioxide and .216 mg of water. what is the empirial formula of this carbohydrate?
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How many grams of CaH2 are needed to generate 20.0 L of H2 gas if the pressure of H2 is 780 torr at 27 C?
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If 0.489 grams of Al are used, how many mL of MnO4- solution must be used to reach the endpoint?(in balanced reaction 4 moles of MnO4- and 3 moles of Al)
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Find the number of automobiles whose total mass is the same as 1.0 {\rm mol} blueberries
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How many grams of sugar would you need to make 115.0 g of ethanol (C2H6O)?
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If a 220 piece of gold (density =19.32 ) is hammered into a sheet measuring 2.41.0 , what is the average thickness of the sheet in meters?
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what is the density of an 84.7g sample of an unknown substance if the sample occupies 49.6cm3?
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what is the pH of a .050 M solution of formic acid
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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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