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Shkiper50 [21]
3 years ago
9

Magnesium reacts with oxygen gas to form magnesium oxide. Which of the following represents the balanced chemical equation?

Chemistry
2 answers:
Iteru [2.4K]3 years ago
7 0

Answer:

2Mg + O2 → 2MgO

Explanation:

maw [93]3 years ago
3 0

Answer:

2Mg + O2 → 2MgO

Explanation:

Step 1: Data given

Magnesium = Mg

Oxygen = O2

magnesiumoxide = MgO

Step 2: The unbalanced equation

Mg + O2 → MgO

Step 3: Balancing the equation

On the left we have 2x O so on there right, we should mulitply MgO by 2 so we have on each side 2x O

Mg + O2 → 2MgO

On hte right side we have 2x Mg, so we have to multiply on the left side Mg by 2 to have the same amount of Mg on both sides

2Mg + O2 → 2MgO

Now the equation is balanced

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Use the equation editor or "Insert Chemistry - WIRIS editor" to write the balanced molecular chemical equation for the reaction
11Alexandr11 [23.1K]

Answer:

<u>Balanced equation:</u>

Pb(NO_{3})_{2}(aq)+K_{2}CO_{3}(aq)\rightarrow PbCO_{3}(s)+2KNO_{3}(aq)

Explanation:

The chemical reaction between Lead(II) Nitrate and potassium carbonate is as follows.

Lead(II)Nitrate+Potassium\,carbonate \rightarrow Lead(III)\,\,carbonate+Potassium\,nitrate

Pb(NO_{3})_{2}(aq)+K_{2}CO_{3}(aq)\rightarrow PbCO_{3}(s)+2KNO_{3}(aq)

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Cancel the same ions on the both sides of the reaction.

The net ionic equation is as follows.

Pb^{2+}(aq)+CO_{3}^{2-}(aq)\Leftrightarrow PbCO_{3}(s)

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