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jek_recluse [69]
3 years ago
6

This happens in massive star which convert hydrogen into helium? ​

Chemistry
1 answer:
katovenus [111]3 years ago
6 0

Answer:

nucleosynthesis. A star's mass determines what other type of nucleosynthesis occurs in its core (or during explosive changes in its life cycle).

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Aleks04 [339]

Answer:17.0

Explanation:

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3 years ago
Which chemical substance has the highest melting point? a) gold b) water c) oxygen d) mercury
gavmur [86]
Gold! it's boiling point is 2807 according to this chart:
http://www.lenntech.com/periodic-chart-elements/boiling-point.htm
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What happens when you combine ammonia and formaldehyde?
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Answer:

The mechanism for the formation of hexamethylenetetraamine predicts the formation of aminomethanol from the addition of ammonia to formaldehyde. This molecule subsequently undergoes unimolecular decomposition to form methanimine and water.

Explanation:

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What two quantities must be known to calculate the density of a sample of matter? A) mass and volume B) length and mass C) size
Svetradugi [14.3K]

Answer:

A

Explanation:

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3 years ago
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When ethyl acetoacetate (ch3coch2co2ch2ch3) is treated with one equivalent of ch3mgbr, a gas is evolved from the reaction mixtur
pashok25 [27]
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