3 years ago

Which statements are true about Figure I and Figure II below? (Check all that apply)

Chemistry

1 answer:

Scilla [17]3 years ago

5 0

Both figures are mixtures,

Figure II is a heterogenous mixture

Figure I is a homogenous mixture

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if you measure the mass of a model car to be 230 grams. the actual mass is 218 grams. what is your percent error.

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27.6% is the correct answer

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0.055 grams of PbSO4 is dissolved in 200.00 grams of H2O.

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Answer:

Solution's mass = 200.055 g

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Explanation:

Solute mass = 0.055 g of lead(II) sulfate

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0.055 g + 200 g = 200.055 g

ppm = μg of solute / g of solution

We convert the mass of solute from g to μg

0.055 g . 1×10⁶ μg/ 1g = 5.5×10⁴μg

5.5×10⁴μg / 200.055 g = 275 ppm

ppm can also be determined as mg of solute / kg of solution

It is important that the relation is 1×10⁻⁶

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Answer:

It increases the amount of carbon dioxide in the air, enhancing global warming.

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I hope this helped!!

~Penny

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