4 years ago

Which of the following is not an example of a molecule?

2 answers:

9966 [12]4 years ago

4 0

D. F

Molecules are a group of bonded atoms but Fluorine stands on its own

sp2606 [1]4 years ago

4 0

The answer choice would be D. F

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Andrew [12]

It has take place as a solid

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3 years ago

Gekata [30.6K]

Answer: The mass percent of lead in lead (IV) carbonate is 63.32 %

Explanation:

The given chemical formula of lead (IV) carbonate is $Pb(CO_3)_2$

To calculate the mass percentage of lead in lead (IV) carbonate, we use the equation:

$\text{Mass percent of lead}=\frac{\text{Mass of lead}}{\text{Mass of lead (IV) carbonate}}\times 100$

Mass of lead = (1 × 207.2) = 207.2 g

Mass of lead (IV) carbonate = [(1 × 207.2) + (2 × 12) + (6 × 16)] = 327.2 g

Putting values in above equation, we get:

$\text{Mass percent of lead}=\frac{207.2g}{327.2g}\times 0100=63.32\%$

Hence, the mass percent of lead in lead (IV) carbonate is 63.32 %

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3 years ago

prisoha [69]

C. Not all mixtures have solutes and solvents

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drek231 [11]

Answer:

Determine how many moles of CO2 are required to produce 11.0 mol of glucose,

i need points thanks for CO2moles

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3 years ago

Illusion [34]

All of these are compounds except oxygen because a compound is two or more different elements bonded together.

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3 years ago