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bulgar [2K]
3 years ago
6

Why does magnesium donate two electrons to oxygen in order to form magnesium oxide (MgO)?

Chemistry
1 answer:
ValentinkaMS [17]3 years ago
8 0

Answer:

electron arrangement of Mg is 2.8.2. To reach a stable octet electron arrangement Mg donates 2 electron to oxygen.Hence, Mgo ion formed.

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Decomposition its the answer
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3 years ago
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When 16.35 moles of SI reacts with 11.26 moles of N2, how many moles of SI3N4 are formed
Allushta [10]

Answer:

5.450 mol Si₃N₄

Explanation:

Step 1: Write the balanced equation

3 Si + 2 N₂ ⇒ Si₃N₄

Step 2: Establish the theoretical molar ratio between the reactants

The theoretical molar ratio of Si to N₂ is 3:2 = 1.5:1.

Step 3: Establish the experimental molar ratio between the reactants

The experimental molar ratio of Si to N₂ is 16.35:11.26 = 1.45:1. Comparing both molar ratios, we can see that Si is the limiting reactant.

Step 4: Calculate the moles of Si₃N₄ produced from 16.35 moles of Si

The molar ratio of Si to Si₃N₄ is 3:1.

16.35 mol Si × 1 mol Si₃N₄/3 mol Si = 5.450 mol Si₃N₄

6 0
2 years ago
2. How many grams of N2 are required to produce 10.0 grams of NH3? N2 + 3 H2 - 2 NH3
SOVA2 [1]

8.24g

Explanation:

Given parameters;

Mass of NH₃ = 10g

Unknown:

Mass of N₂ = ?

Solution:

  Reaction equation:

               N₂    +    3H₂     →      2NH₃

Step 1: Convert 10.0 g of NH₃ into moles of NH₃

number of moles = \frac{mass}{molar mass}

   molar mass of NH₃ = 14 + 3(1) = 17g/mol

 Number of moles = \frac{10}{17}  = 0.59mole

Step 2: Convert the moles of NH₃ calculated in Step 1 into moles of N₂

       1 mole of N₂    produced 2 mole of NH₃

   

0.59 moles of ammonia would be formed by \frac{0.59}{2} mole = 0.29mole of N₂

Step 3: Convert the moles of N₂ calculated in Step 2 into grams of N₂.

Mass of N₂ = number of moles x molar mass

  Molar mass of N₂ = 14 x 2 = 28g/mol

  Mass of N₂ = 0.29 x 28 = 8.24g

learn more:

Number of moles brainly.com/question/1841136

#learnwithBrainly

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How many atoms are in FeS2
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There are three atoms in FeS2.
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What does glycine betaine do for the leaves flowers and fruits in cold-exposed plants?
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Glycine betaine along with proline accumulates with plants when they are under severe conditions like ultra violet radiation, salanity, extreme temperature and drought. glycine betaine along with proline are biological osmolytes, this are their response during extreme conditions
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