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Author Archives: Anonymous

Balance the following chemical equation. Na   +  Al(NO3)3  -…

Balance the following chemical equation. Na   +  Al(NO3)3  ——> NaNO3   +  Al   Give your answer in the following format – for example if the answer to a balanced equation is  C3H8   + 5O2 —–> 3CO2  + 4H2O  –  then answer like this:       5O2  3CO2  3CO2  4H2O  I don’t need you to write down the compounds that do not have a number in front of them.

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               C3H8   + 5O2 —–> 3CO2  + 4H2O Use the chem…

               C3H8   + 5O2 —–> 3CO2  + 4H2O Use the chemical equation above to calculate the number of grams of CO2 that will react with 3.0 mol of O2.   You only need to put in the answer – I do not need to see your calculations that you did to get the answer. Also be sure to add the units to your answer – which on this problem will be just g.

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Calculate the molar mass of potassium chloride, KCl. You onl…

Calculate the molar mass of potassium chloride, KCl. You only need to put in the answer – I do not need to see your calculations that you did to get the answer. Also be sure to add the units to your answer – which on this problem will be  g/mol.

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Calculate the molar mass of sodium bromide, NaBr. You only n…

Calculate the molar mass of sodium bromide, NaBr. You only need to put in the answer – I do not need to see your calculations that you did to get the answer. Also be sure to add the units to your answer – which on this problem will be  g/mol.

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Calculate the number of moles of sodium in 225.0 g of sodium…

Calculate the number of moles of sodium in 225.0 g of sodium, Na? You only need to put in the answer – I do not need to see your calculations that you did to get the answer. Also be sure to add the units to your answer – which on this problem will be just mol.  

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                    C3H8   + 5O2 —–> 3CO2  + 4H2O Use the…

                    C3H8   + 5O2 —–> 3CO2  + 4H2O Use the chemical equation above to calculate moles of H2O that would react with 2.0 mol O2.   You only need to put in the answer – I do not need to see your calculations that you did to get the answer. Also be sure to add the units to your answer – which on this problem will be just mol.

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According to John Underhill’s Newes from America (1638), wha…

According to John Underhill’s Newes from America (1638), what complaint did the English colonists’ Native allies level against them during their collective war with the Pequot tribe in 1637?

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Which of the following is a correct matching of a polymer an…

Which of the following is a correct matching of a polymer and its monomer? 

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If a person breathes in pure oxygen, what effect would it ha…

If a person breathes in pure oxygen, what effect would it have on gas exchange in the lungs?

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What is the function of mechanical digestion?

What is the function of mechanical digestion?

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