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PtichkaEL [24]
3 years ago
10

What process is aided by lightning legumes and soul bacteria

Chemistry
1 answer:
g100num [7]3 years ago
8 0

so this is right answer

For reasons that are unclear, no eukaryotic enzymes can break the triple bond of N2. The reduction of N2 to NH3 (nitrogen fixation) is limited to prokaryotes and is catalysed by nitrogenase. Since most of the nitrogen entering the biosphere (around 100 million metric tonnes of N2 per annum) does so through nitrogenase activity (lightning contributes about 10%), those plants that associate with nitrogen-fixing bacteria have a significant selective advantage under conditions of limiting nitrogen.

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16.0 grams of molecular oxygen gas is equal to
IceJOKER [234]

One thing to notice in the question is, we are asked about molecular oxygen that has formula O2 not atomic oxygen O.

As we are asked about molecular oxygen, we will answer the question in terms of number of molecules that are present in 16 grams of molecular oxygen.

To get the number of molecules present in 16 grams of O2, we will use the formula:

         No. of molecules = no. of moles x Avogadro's number (NA)-----  eq 1)

As we know:

                        The number of moles = mass/ molar mass of molecule

Here we have been given mass already, 16 grams and the molar mass of O2 is 32 grams.

Putting the values in above formula:

                                                    = 16/32  

                                                     = 0.5 moles

Putting the number of moles and Avogadro's number (6.02 * 10^23) in eq 1

                                No. of molecules = 0.5  x 6.02 * 10^23

                                   =3.01 x 10^23 molecules

or                 301,000,000,000,000,000,000,000 molecules

This means that 16 grams of 3.01 x 10^23 molecules of oxygen.

Hope it helps!

4 0
3 years ago
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PLEASE HURRY
Evgen [1.6K]

<em>Answer:</em>

4) the one that is reduced, which is the oxidizing agent

<em>Explanation:</em>

<em>An oxidizing agent is one that causes oxidation by gaining electrons from another atom/molecule. </em>

6 0
2 years ago
Science help please 20 points
cupoosta [38]

Answer:

1. Earth

2. Sun

3. Sun

4. Earth

5. Earth

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7. Earth

Explanation:

I'm a lil sus of 3 and 6 but I'm pretty sure it's right.

7 0
2 years ago
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1. When 8 moles of lithium metal react with excess oxygen gas, how many miles of lithium oxide can be produced?
mash [69]
2 moles of lithium oxide
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3 years ago
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The model below shows an atom of an element. 9 light grey and 8 dark grey balls sit at the center with 2 concentric black rings
aleksley [76]

Answer:

sorry if this is a bit late but i know what your talking about and your answer would be 8

stay happy!!

3 0
3 years ago
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