CHEMISTRY MIDDLE SCHOOL

N2 + 6e → 2N-3The reaction above represents which of the following?
a. Reduction
b. Decomposition
Oxidation
d. Acid-Base Netralization​

Answers

Answer 1
Answer:

Answer:

The correct answer is reduction.

Explanation:

Nitrogen gas reacts with hydrogen gas and get reduced to form ammonia. In this reaction.This is important reaction of atmospheric nitrogen fixation.The reaction is carried out by many nitrogen fixing bacteria such as Azotobacter,Clostridium etc.

        N2+3H2+6e-  =  2NH3
Answer 2
Answer:

Final answer:

The reaction N2 + 6e → 2N-3 represents reduction, where nitrogen gains electrons to form N-3 ions.

Explanation:

The reaction N2 + 6e → 2N-3 represents reduction. In this reaction, nitrogen (N2) gains electrons (e) to form N-3 ions. Reduction is a process in which an atom or ion gains electrons, resulting in a decrease in its oxidation state.

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On the periodic table how many periods are there and how many columns are there

Answers

There are seven periods with eighteen columns in the periodic table.

What is the concentration of O2(g), in parts per million, in a solution that contains 0.008 gram of O2(g) dissolved in 1000. grams of H2O(2)?Listen

1

0.8 ppm

8 ppm

80 ppm

800 ppm

Answers

Answer : The concentration of O_2 (g) in parts per million is, 8 ppm

Explanation : Given,

Mass of oxygen gas (solute) = 0.008 g

Mass of water (solvent) = 1000 g

First we have to calculate the mass of solution.

Mass of solution = Mass of solute + Mass of solvent = 0.008 + 1000 = 1000.008 g

Now we have to calculate the concentration of  O_2 (g) in parts per million.

ppm : It is defined as the mass of solute present in one million (10^6) parts by mass of the solution.

ppm=\frac{\text{Mass of solute}}{\text{Mass of solution}}* 10^6

Now put all the given values in this expression, we get

ppm=(0.008g)/(1000.008g)* 10^6=7.99=8ppm

Therefore, the concentration of O_2 (g) in parts per million is, 8 ppm

During unfavorable conditions and amoeba forms a

Answers

A cyst forms when its in unfavorable conditions
A cryst forms

Hope The Answer Helps! >.<

What country was the first crystal discovered?

Answers

has never been proved since crystals have been around for longer than humanity, highest possibility that the first crystals found by us was in a cave in africa, around today's egypt. they were actually looking for gold but they stumbled upon shiny clear rocks too :)
Africa in Egypt was the first place where discovers found on crystals

Which of these is a chemical property?A.boiling point
B.Flammability
C.Density
D.Solubility

Answers

Yes, refer to the previous answer.
(B.) Flammability of course

Convert 43.0 grams of SiH4 to moles

Answers

The number of moles in the 4.30 g of SiH₄ is  1.338 moles.

What are moles?

The mole is a SI unit of measurement that is used to calculate the quantity of any substance.

To calculate the moles

The molar mass of SiH₄ is 32.12 g

The mass of SiH₄ is 43.0 g

\rm Number\;of \;moles= (mass)/(molar\;mass)\n\n\rm Number\;of \;moles= (43.0)/(32.12) = 1.338\; mol

Thus, the number of moles in the 4.30 g of SiH₄ is 1.338 moles.

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43.0 grams of SiH4 converts to 1.338 moles.
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