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Vesnalui [34]
3 years ago
13

Which of the following represents a phase change? A. Melting B. Crushing C. Expanding D. Burning

Chemistry
1 answer:
Fantom [35]3 years ago
6 0
Melting is an example of phase change
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4.8 moles of Kl are dissolved in 850 mL of water. What is the molarity of the solutions?
AURORKA [14]
Hey there!

Molarity = 4.8/850 x 1000 =5.647mol/lit or 5.65M

Hope this helps you dear :)
Have a good day :)
4 0
2 years ago
In Universe L, recently discovered by an intrepid team of chemists who also happen to have studied interdimensional travel, quan
lidiya [134]

Answer:

Second element(Titanium); [Ar] 3d2 4s2

Third element(Vanadium):Ar 3d3 4s2

Explanation:

Given that there are only three d orbitals in universe L instead of five, the electronic configuration of the second and third elements in the first transition series will now look thus;

Second element(Titanium); [Ar] 3d2 4s2

Third transition element(Vanadium):Ar 3d3 4s2

Hence, the electronic configuration of Titanium and Vanadium in universe L is just the same as what it is on earth.

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3 years ago
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Answer:

See explanation

Explanation:

1) Physical change is usually reversible, while chemical change isn't

2) Chemical change involves the change of chemical composition of matter while physical change doesn't

6 0
3 years ago
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C) It contains the same number of electrons and protons.

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