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PolarNik [594]
3 years ago
14

How many moles are in 458 grams of Na2SO4

Chemistry
1 answer:
Anuta_ua [19.1K]3 years ago
7 0
There are 3.2 moles of Na2SO4
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The formation of protons over neutrons (thus producing about a 7:1 ratio) was favored in the early universe because:____.
tatiyna

Because it requires more energy to create a neutron from a proton than it does to create a proton from a neutron, protons were formed more frequently than neutrons in the early universe. The correct answer is option b.

To find the answer, we need to know more about the early universe.

<h3>How the formation of proton over neutrons was favored in the early universe?</h3>
  • A neutron is produced with greater energy than a proton.
  • However, later on, some of the protons were changed into neutrons.
  • Contrary to some claims, the proton is a stable particle that never decays, but the neutron is unstable outside of the nucleus and decays with a half life of around 10.5 minutes.
  • However, very few would have had time to decay on the timeline you mention in your question.
  • Every matter particle should have been accompanied by an antimatter particle, and every proton, neutron, and electron, by an anti-neutron and a positron, respectively.
  • Where did all the antimatter go is the great mystery. There have been a few attempts to explain this, but they have failed.

Thus, we can conclude that, the correct answer is option b.

Learn more about the early universe here:

brainly.com/question/28130096

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7 0
2 years ago
The N H 2 group makes the molecule an amine. Like alcohols, amines can participate in hydrogen bonding. If the drawn molecule en
lesantik [10]

Answer:

a hydrogen bond between the hydrogen of water and the nitrogen of the amine

a hydrogen bond between the oxygen of water and a hydrogen from the -NH2 group

Explanation:

A hydrogen bond is formed between molecules in which hydrogen is bonded to a highly electronegative element.

In amines, hydrogen is bonded to nitrogen while in water, hydrogen is bonded to oxygen. Both are highly electronegative elements hence hydrogen bonding is possible between amines and water.

This hydrogen bond may involve;

The hydrogen of water and the nitrogen of the amine

Or

The oxygen of water and a hydrogen from the -NH2 group

7 0
3 years ago
What is the percent of Li in Li3N ? Please!!
lisabon 2012 [21]
I think it maybe 59.7852%
6 0
3 years ago
Read 2 more answers
How many neutrons and electrons are in Oxygen⁻¹⁷ isotope?
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Answer:

Neutrons- 9 Electrons- 8

Explanation:

Protons equals electrons and since the atomic# of oxygen is 8, 8 is the proton and 8 will be the electrons a s well since it isn't an ion. You subtract 8 from the 17 to get 9 as the neutron.

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3 years ago
According to the ph scale, what is the approximate ph of ammonia solution?
UNO [17]
I believe that the answer is 11.5
5 0
4 years ago
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