3 years ago

Which of the following is an example of a polymer?

1 answer:

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Sucrose is an example of a polymer separate but equal means that both races get the same thing they just dont get it at the same time.

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ObIel WiLll unt COl.. USSMS A certain chemical reaction releases 31.2 kJ/g of heat for each gram of reactant consumed. How can y

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The expression to calculate the mass of the reactant is $m = \frac{1.080kJ}{31.2kJ/g}$

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What is the percent of hydrogen peroxide in the solution when 5.02g of H2O2 solution reacts to produce 0.153g of H2O2? 2H2O2 (l)

Murljashka [212]

Given:

Mass of H2O2 solution = 5.02 g

Mass of H2O2 = 0.153 g

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The % H2O2 in solution

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2H2O2(l) → 2H2O(l) + O2(g)

Mass % of a substance in a solution = (Mass of the substance/Mass of solution) * 100

In this case

% H2O2 = (Mass H2O2/Mass of solution)* 100 = (0.153/5.02)*100 = 3.05%

Ans: % H2O2 in the solution = 3.05%

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