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3 years ago

For the energy diagram of the chemical reaction depicted here, which of the following is the best conclusion?

Chemistry

2 answers:

My name is Ann [436]3 years ago

8 0

Answer: B The reaction is exothermic

Eddi Din [679]3 years ago

5 0

Answer:

Explanation:

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The reason that some of the elements of period three and beyond are steady in spite of not sticking to the octet rule is due to the fact of possessing the tendency of forming large size, and a tendency of making more than four bonds. For example, sulfur, it belongs to period 3 and is big enough to hold six fluorine atoms as can be seen in the molecule SF₆, while the second period of an element like nitrogen may not be big to comprise 6 fluorine atoms.

The existence of unoccupied d orbitals are accessible for bonding for period 3 elements and beyond, the size plays a prime function than the tendency to produce more bonds. Hence, the suggestion of the second friend is correct.

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3 years ago

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The carbon atoms in graphite and the carbon atoms in diamond have different

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<u>structural arrangements</u>

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<h2>properties of daimond: </h2><h3>appearance: transparent</h3><h3>hardness: very hard</h3><h3>thermal conductivity :very poor</h3><h3>electric conductivity: poor</h3><h3>density:</h3>

$3510 {kgm}^{3}$

<h3>uses: jewellery and drilling</h3>

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<h2>properties of graphite:</h2>

<h3>appearance: black shiny</h3><h3>hardness: soft ,slippery to touch</h3><h3>thermal conductivity : moderate</h3><h3>electric conductivity: good</h3><h3>density:</h3>

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On heating diamond or graphite in the air, they burn completely to form carbon dioxide.
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2 years ago

The red balls represent _____ and have a positive charge.

AysviL [449]

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3 years ago