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den301095 [7]
3 years ago
5

B. Bromine melts at -7.2°C. What is bromine's melting point in kelvins?

Chemistry
1 answer:
Mars2501 [29]3 years ago
8 0

Answer: 265.95 kelvins

Explanation:

Looked it up on google

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Convert 8.876 × 10^12 m^2 to units of km^2.
Darya [45]

Answer:

8.876\times 10^{18}\ km^2

Explanation:

In this problem, we need to convert 8.876 \times 10^{12}\ m^2 to km².

We know that,

1 km = 1000 m

⇒ 1 km² = 10⁶ m²

So,

8.876 \times 10^{12}\ m^2=8.876 \times 10^{12}\times 10^6\ km^2\\\\=8.876\times 10^{18}\ km^2

So, 8.876 \times 10^{12}\ m^2 is equal to 8.876\times 10^{18}\ km^2.

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Which type of molecule is used by organisms to store and transmit genetic information?
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Oxygen has 6 valence electrons. How many electrons does an atom of oxygen need to become stable?
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Answer:

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Explanation:

According to the octet rule, atoms must bond to each other, sharing electrons among themselves in an attempt to complete their valence shell (last layer of the electrosphere). In other words, an atom becomes stable when it has 8 electrons in its valence shell.

Oxygen atoms have six electrons in their valence shell, so to achieve the stability suggested by the octet rule (eight electrons), these atoms share two electrons, forming one oxygen gas (O₂) molecule.

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Which solution is a homogeneous mixture?
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Write the ionic equation, including state symbols, for the reaction between zinc and iron(II) sulfate
jeyben [28]

Answer:

Fe (s) + Cu^2+ (aq) + SO4^2- (aq) --> Cu (s) + Fe^2+ (aq) + SO4^2- (aq)

Explanation:

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