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andriy [413]
3 years ago
9

Topics on how humans use energy pls can somebody give me a few..

Chemistry
1 answer:
kupik [55]3 years ago
5 0

Answer: Humans use energy to carry out their daily activities, like moving around, working, running etc.

Explanation:

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Ainat [17]

Answer:

The correct answer is 4

Explanation:

Boron trifluoride (BF₃) has a molecular geometry (as shown in the image in the question) referred to as trigonal planar; this is because each of the the fluorine atoms/molecules (bonded to the central boron atom) is placed in such a way that they form the three "end points"/"domains" of an equilateral triangle. Hence, the correct option is the last option.

7 0
3 years ago
1. A mixture contains 8.00 g each of O2, CO2, and SO2 at STP. Calculate the volume of this mixture. Which of the gases would exe
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Answer:

Explanation:

mole of O₂ = \frac{8}{32}

= .25 moles

mole of CO₂

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moles of SO₂

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total volume of gas mixture

= 22.4 x .5568 liter ( volume of one mole of any gas = 22.4 liter)

= 12.47 liter.

gas will exert partial pressure according to their mole fraction

gas having greatest no of moles in the total mole will have greatest mole fraction so

O₂ will have greatest partial pressure.

7 0
3 years ago
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hope I helped

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8 0
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