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Nostrana [21]
3 years ago
9

____________  was the first chemist to organize elements by atomic number

Chemistry
1 answer:
Natalija [7]3 years ago
4 0

Answer:

Henry Moseley

Explanation: Passed with 98

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What element is solid at room temperature shiny malleable and a good conductor of heat
Aliun [14]

Answer:

I believe that it would be copper because copper is all of those things.

Explanation:

6 0
3 years ago
2Na3N3 -&gt; 2Na + 3N2<br><br> if 0.58 mol if NaN3 reacts, what mass of nitrogen would result
Ronch [10]

Answer:

                      Mass = 24.36 g of N₂

Explanation:

                   The balance chemical equation for the decomposition of NaNO₃ is as follow;

                                           2 NaN₃ → 2 Na + 3 N₂

Step 1: Find moles of N₂ as;

According to equation,

                 2 moles of NaNO₃ produces  =  3 moles of N₂

So,

              0.58 moles of NaNO₃ will produce  =  X moles of N₂

Solving for X,

                      X = 3 mol × 0.58 mol / 2 mol

                      X = 0.87 mol of N₂

Step 2: Calculate mass of N₂ as,

Mass = Moles × M.Mass

Mass = 0.87 mol × 28.01 g/mol

Mass = 24.36 g of N₂

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3 years ago
Wsp im fisdes once again hiiiii
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6 0
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What is the function of the cell membrane
enot [183]
It is supposed to protect the cell from it's surroundings, or from the outside.
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