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mylen [45]
2 years ago
10

Na + H2 → NaCl balanced equation

Chemistry
2 answers:
hodyreva [135]2 years ago
6 0

Answer:

..............

........

.............

Zepler [3.9K]2 years ago
4 0

\\ \rm\rightarrowtail 2Na+H_2\longrightarrow 2NaH

On both sides

  • Na=2
  • H=2

Hence balanced

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How many grams of magnesium oxide forms when 8.0g of magnesium are burned?
AfilCa [17]
Magnesium burns with oxygen to give magnesium oxide based on the following reaction:
2M<span>g</span>+<span>O<span>2 </span></span>........> 2Mg<span>O<span>(s)</span></span>+<span>energy
</span>From the periodic table:
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molecular mass of oxygen = 16 grams

From the reaction:
2 x 24.3 = 48.6 grams of magnesium are required to produce 2(24.3+16) = 80.6 grams of magnesium oxide.
We can know the amount of magnesium oxide produced from 8 grams of magnesium by simply doing cross multiplication as follows:
amount of magnesium oxide = (8 x 80.6) / 48.6 = 13.267 grams

7 0
3 years ago
N2 (g) + 2O2(g) = 2NO2 (g) ΔH = 66.4 kJ 2NO (g) + O2 (g) = 2NO2 (g) ΔH = -114.2 kJ the enthalpy of the reaction of the nitrogen
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Answer:

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