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Irina18 [472]
3 years ago
13

How much energy is required to melt 2kg of aluminium

Chemistry
1 answer:
ki77a [65]3 years ago
6 0
800kj----------




800kj----------
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Testbank, Question 095 What is the expected major organic product from the treatment of 4-methyl-2-pentyne with excess hydrogen
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Answer:

See explanation and image attached

Explanation:

The addition of excess hydrogen to alkyne in the presence of a platinum catalyst leads to complete hydrogenation of the alkyne as shown in the image attached.

Therefore, an alkane is obtained as the major organic product when excess hydrogen reacts with an alkyne in the presence of a platinum catalyst.

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A jeweler is making sapphire rings using 2 sapphires on every 1 ring. If the jeweler has 12 sapphires and 10 rings, what is the
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Answer: The theoretical yield is 6 rings.

Explanation:

Theoretical yield is predicted or estimated value.

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Out of 10 rings 6 rings with 2 sapphires will be made.

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1.10 g H2

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