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Brilliant_brown [7]
3 years ago
9

Identify objects that are good conductors of heat. (Choose all that apply.)

Chemistry
2 answers:
WINSTONCH [101]3 years ago
8 0
C. Paper <span>B. Metal thats bout it water no way                           </span>
Burka [1]3 years ago
8 0
Metal and Water are the only good conductors of heat in that list, because liquid and solid substances are good conductors of heat.
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A compound is found to contain 26.73 % phosphorus, 12.09 % nitrogen, and 61.18 % chlorine by mass. What is the empirical formula
Mrrafil [7]

Answer:

PNCl_2

Explanation:

Hello!

In this case, when determining empirical formulas by knowing the by-mass percent, we first must assume the percentages as masses so we can compute the moles of each element:

n_P=\frac{26.73g}{30.97g/mol}=0.863mol\\\\n_N=\frac{12.09g}{14.01g/mol}=0.863mol\\\\n_C_l=\frac{61.18g}{35.45g/mol}=1.726mol

Now, for the determination of the subscript of each element in the empirical formula, we divide the moles by the fewest moles (P or N):

P=\frac{0.863mol}{0.863mol}=1\\\\N= \frac{0.863mol}{0.863mol}=1\\\\Cl=\frac{1.726mol}{0.863mol}2

Thus, the empirical formula is:

PNCl_2

Regards!

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2 years ago
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the correct answer is False.

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