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goldfiish [28.3K]
3 years ago
7

Which statement about liquid state of matter is true?

Chemistry
1 answer:
serious [3.7K]3 years ago
4 0
The answer is A! Let me know if I was correct
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Copper has average atomic mass of 63.546 amu. It's two isotopes are Cu-63 (which is 69.17% abundant and has a mass of 62.9296 am
garri49 [273]

Answer: 69.152% → 63^Cu

30.848% → 65^Cu

Explanation:

As you know, the average atomic mass of an element is determined by taking the weighted average of the atomic masses of its naturally occurring isotopes.

Simply put, an element's naturally occurring isotopes will contribute to the average atomic mass of the element proportionally to their abundance.

Explanation:

6 0
2 years ago
Sodium hydroxide +HCI ➙ sodium chloride +H2O<br><br> Is this a:
Alexus [3.1K]
Neutralization reaction??
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3 years ago
The volume of a gas is 450 mL when its pressure is 1.00 atm. If the temperature of the gas does not change, what is the pressure
Delvig [45]

Answer:

0.225 atm

Explanation:

v1=450ml÷1000=0.45l(1l=1000ml)

P1=1

v2=2.00l

p2=?

p1v1=p2v2

p2=p1v1/v2

=1×0.45/2

=0.225

so the answer is first one

3 0
2 years ago
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Explain the process of how a star starts as a cloud of dust and gas that then<br> forms into a star.
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Stars form from an accumulation of gas and dust, which collapses due to gravity and starts to form stars. The process of star formation takes around a million years from the time the initial gas cloud starts to collapse until the star is created and shines like the Sun.

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3 years ago
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Simple Chemistry Question - 5 points
ella [17]
Boyle’s Law I’m pretty sure
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