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klemol [59]
3 years ago
12

A chemical reaction happens in three steps.

Chemistry
1 answer:
oee [108]3 years ago
7 0
Steps 1 and 3 are correct rate
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6Na(s) + N2(g) --> 2Na3N(s)
Ksivusya [100]

Answer:

 80.0 g Na and 20.0 g N2.

Explanation:

This means the limiting reactant determines the maximum mass of the product formed.

7 0
1 year ago
Draw the best Lewis structure for CH 3 -1. What is the formal charge on the C?
djyliett [7]

Answer :  The formal charge on the C is, (-1) charge.

Explanation :

Lewis-dot structure : It shows the bonding between the atoms of a molecule and it also shows the unpaired electrons present in the molecule.

In the Lewis-dot structure the valance electrons are shown by 'dot'.

The given molecule is, CH_3^{-1}

As we know that carbon has '4' valence electrons and hydrogen has '1' valence electron.

Therefore, the total number of valence electrons in CH_3^{-1} = 4 + 3(1) + 1 = 8

According to Lewis-dot structure, there are 6 number of bonding electrons and 2 number of non-bonding electrons.

Now we have to determine the formal charge on carbon atom.

Formula for formal charge :

\text{Formal charge}=\text{Valence electrons}-\text{Non-bonding electrons}-\frac{\text{Bonding electrons}}{2}

\text{Formal charge on C}=4-2-\frac{6}{2}=-1

The formal charge on the C is, (-1) charge.

3 0
3 years ago
Explain why the C―Ha bond is much more acidic than the C―Hb bond in pentan-2-one. Select the single best answer. 253 Ha is less
mafiozo [28]

Answer:

Ha is more acidic than Hb because loss of Ha forms a resonance-stabilized conjugate base.

Explanation:

The carbon atom that is next to the carbonyl group in pentan-2-one is known as the alpha carbon atom, this carbon atom bears the Ha, the alpha hydrogen atoms.

Ha is more acidic than Hb because, loss of Ha leads to the formation of a resonance stabilized enolate ion. This resonance stabilization of the ion formed makes loss of Ha an easier process than loss of Hb, hence the answer above.

3 0
3 years ago
The breaking down and changing of rocks at or near Earth's surface is called _____.
vodomira [7]
The answer is weathering
6 0
3 years ago
Read 2 more answers
HELP ASAP<br> SHOW WORK!<br><br> how many atoms are in 5.90 mol of calcium ca
saveliy_v [14]

Answer:

1 I'm doing this in science class right now I got help yesturday on it! hope this helps

7 0
3 years ago
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