Chemistry, 23.02.2021 01:50 janeou17xn
Review exercise
I.- Solve the following problems by writing down the complete procedure:
a.- How many liters of hydrogen are obtained when 95 L of Hydrobromic Acid react, the following reaction occurs:
2Fe + 6HBr 3 H 2 + 2Fe Br3
b.- Calculate the grams of sodium that are required to produce 120 g of sodium chloride when the following reaction is carried out:
2Na + Cl 2 2NaCl
c.- How many liters of water are needed to produce 75 L of hydrogen, the following reaction occurs:
2K + 2 H 2 O 2KOH + 2 H 2
d.- Determine the grams of Aluminum required to produce 196 grams of Aluminum Sulfide through the following reaction:
2Al + 3 S Al 2 S 3
Answers: 2
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Scientists often have to deal with numbers that are either very large or very small. for example, the radius of the sun is approximately 696,000 kilometers, while bacterial cells are as small as 1.9 × 10-4 millimeters. express each number in an alternate form.
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Which of the four hypothetical substances you investigated would be most harmful to living organisms? 50 points!
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Select the correct answer. wax is a nonpolar substance. in which type of substance is it most soluble?
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Review exercise
I.- Solve the following problems by writing down the complete procedure:
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