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pogonyaev
3 years ago
7

What are two ways that nonmetallic minerals can be used?

Chemistry
2 answers:
Veronika [31]3 years ago
8 0
Idk if i'm too late but the answer should be A.

Firdavs [7]3 years ago
6 0
I think the answer is A but not sure

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¿Cuántos moles de C3H8 contienen 9.25 x 10^24 moléculas?
Igoryamba

Answer:

\large \boxed{\text{e. 15.4 mol C$_{3}$H}_{8}}

Explanation:\text{Moles of propane} = 9.25 \times 10^{24}\text{ molecules} \times \dfrac{\text{1 mol }}{6.022 \times\ 10^{23} \text{molecules}} = \textbf{15.4 mol}

5 0
3 years ago
A solution is prepared by mixing 25.0 g H2O and 25.0 g C2H5OH. Determine the mole fractions of each substance.
Veronika [31]

Answer:

Mole fraction H₂O → 0.72

Mole fraction C₂H₅OH → 0.28

Explanation:

By the mass of the two elements in the solution, we determine the moles of each:

25 g . 1 mol/ 18g = 1.39 moles of water (solute)

25 g . 1 mol / 46 g = 0.543 moles of ethanol (solvent)

Mole fraction solute = Moles of solute / Total moles

Mole fraction solvent = Moles of solvent / Total moles

Total moles = Moles of solute + Moles of solvent

1.39 moles of solute + 0.543 moles of solvent = 1.933 moles → Total moles

Mole fraction H₂O = 1.39 / 1.933 → 0.72

Mole fraction C₂H₅OH= 0.543 / 1.933 → 0.28

Remember that sum of mole fractions = 1

8 0
3 years ago
Read 2 more answers
Liquid hexane e (CH 3 (CH 2 ) 4 CH 3 ) will react with gaseous oxygen (O 2 ) to produce gaseous carbon dioxide (CO 2 ) and gaseo
soldi70 [24.7K]

Answer:

Explanation:

Hi I'm so sorry hope you have a good day

7 0
3 years ago
State why argon is used in the light bulb. Explain your answer in terms of the electronic structure of an argon atom.
faltersainse [42]
Hi I need Help with this :
A swimming pool has an inlet pipe that can fill the empty pool in 12 hours with the drain is closed and the inlet pipe is closed the drain can empty the full pool in 20 hours. When the pool is empty how long will it take the inlet pipe to fill the pool drain if it is left open ?
5 0
3 years ago
Which has the reverse chemical reaction as
Mazyrski [523]

Answer:

please further explain your question

4 0
3 years ago
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