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blondinia [14]
2 years ago
13

PLZZ HELP ITS TIMED

Chemistry
1 answer:
BartSMP [9]2 years ago
3 0

Answer:Carbon dioxide

Explanation:Carbon dioxide molecules are heavier than air. Because of this, they push the oxygen and other molecules in the air out of the way as they sink down over the flame and candle. When oxygen is pushed away from the wick, it can’t react with the wax anymore. This makes the flame go out.

Next time you blow out a candle, think about what your breath is doing. Why do you think blowing on a candle flame makes it go out?

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AleksandrR [38]

Answer:

D. 6.00 L

Explanation:

What we have here is an example of Boyle's Law. The equation here is P₁ · V₁ = P₂ · V₂. We know all of the values except for V₂.

60(8) = 80V

<em>Multiply 60 by 8 to get 480.</em>

480 = 80V

<em>Divide both sides by 80.</em>

480/80 = V

6 = V

The final volume for the gas is 6.00 L.

5 0
3 years ago
The phase of matter which is exposed to normal atmospheric pressure is solely dependent upon temperature.
miss Akunina [59]

Answer:

True

Explanation:

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Host

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3 years ago
Which of the two substances would have a higher melting point: O2 or quartz (SiO2)n? Explain your answer.
sesenic [268]

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quartz (SiO2)n

Explanation:

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Quartz (SiO2)n has high melting point than O2 because Quartz (SiO2)n is found in the form of hard, crystalline mineral that is made up of silicon and oxygen atoms having strong covalent bonds between all the atoms. So, a lot of energy is required to break the bond between the atoms and it has a high melting point.

Hence, the correct answer is quartz (SiO2)n.

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