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docker41 [41]
3 years ago
15

What is the chemical formula of trisilicon tetranitride? A. Si3N4 B. Si4N3 C. Si3N6 D. Si6N3 E. Si4N6 Reset Next

Chemistry
2 answers:
kherson [118]3 years ago
5 0

The answer is Si3N4 (A).

vekshin13 years ago
4 0

Answer : The correct option is, (A) Si_3N_4

Explanation :

Trisilicon tetranitride is a covalent compound because sharing of electrons takes place between silicon and nitrogen. Both the elements are non-metals and hence, will form a covalent bond.

The formula of covalent compound is given by :

  • The less electronegative element is written first.
  • The more electronegative element is written next.
  • If atoms of an element is greater than 1 that means their prefixes are written in the respective element's subscript.

As per given name of compound, the less electronegative element is 'Si' and more electronegative element is 'N'.

So, the chemical formula of trisilicon tetranitride is, Si_3N_4

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3 years ago
What color would you expect a weak base to turn the paper?
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Answer:

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Explanation:

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3 years ago
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>
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  • However, later on, some of the protons were changed into neutrons.
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  • 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.
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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
1 year ago
Which one of the following does not describe an acid​
Irina-Kira [14]

Answer:

C a sour tasting substance

Explanation:

The taste of an acid does not matter. An acid is an aqueous solution meaning that it is solvent in water.

8 0
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Im not sure but here is some information to help A declarative question is a yes-no question that has the form of a declarative sentence but is spoken with rising intonation at the end. Declarative sentences are commonly used in informal speech to express surprise or ask for verification.
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