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kotegsom [21]
3 years ago
12

Which statement correctly describes 1 mole of iodine (I₂)

Chemistry
1 answer:
Vika [28.1K]3 years ago
5 0

Answer:

It contains 6.02*10^23 molecules

Explanation:

Please mark Brainliest

Thank you!

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Energy in a vacuum travels by ___.<br> A. radiation<br> B. conduction<br> C. convection
mariarad [96]
I think it’s radiation, that’s what i got from looking it up
8 0
3 years ago
A helium balloon has a volume of 17.3 L
NemiM [27]

Answer:

15.28 L

Explanation:

Use combined gas law and rearrange formula

Change C to K

- Hope that helped! Please let me know if you need further explanation, as I can show you step by step.

5 0
3 years ago
A sample of argon gas at 55°C is under 845 mm Hg pressure. What will the new temperature be if the pressure is raised to 1050 mm
Maurinko [17]

Answer:

The final temperature at 1050 mmHg is 134.57 ^{\circ}C or 407.57 Kelvin.

Explanation:

Initial temperature = T = 55^{\circ}C = 328 K

Initial pressure = P = 845 mmHg

Assuming final  to be temperature to be T' Kelvin

Final Pressure = P' = 1050 mmHg  

The final temperature is obtained by following relation at constant volume

\displaystyle \frac{P}{P'}=\displaystyle \frac{T}{T'} \\ \displaystyle \frac{845 \textrm{ mmHg}}{1050 \textrm{ mmHg}} = \displaystyle \frac{328 \textrm{ K}}{T'} \\T' = 407.57 \textrm{ Kelvin}

The final temperature is 407.57 K

7 0
3 years ago
What caused the temperature of the sand to change?
Setler79 [48]
Sand is usually hot from the sun. It is hot because of the sun. if the sand were to be wet then it would take longer to change.
8 0
3 years ago
Read 2 more answers
If you can help answer the question if you can't then don't
vampirchik [111]

Answer:

Yes its both a physical and chemical change heres why.

When heated , the wax melts to form a liquid wax . The liquid wax then becomes a solid wax upon cooling ( Physical change )

When the candle is lit, the wax near the tip of the candle will melt . The wick then absorbs the liquid wax . The liquid wax then vapourizes due to the heat emitting from the flame . The wax vapour then burns to give off a black substance ( what we will to as CO₂ , soot ) , heat and water vapour

(Chemical change )

Brainliest ? Hope I answered your question

4 0
3 years ago
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