Write a balanced equation for the synthesis reaction that occured

Chemistry
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Write a balanced equation for the synthesis reaction of magnesium that is burned. This is the info from my lab:

Mass of empty crucible 88.000g, mass of crucible and Mg before heating 93.00g

Mass of unknown product and crucible after heating 96.289g , Change in mass 96.289g-93.000g=3.289g 

I added 5 grams of Mg to the crucible then put it on low flame over the Bunsen burner

Oct 17th, 2015

Thank you for the opportunity to help you with your question!

A synthesis reaction is a type of reaction in which multiple reactants combine to form a single product. Synthesis reactions release energy in the form of heat and light, so they are exothermic. An example of a synthesis reaction is the magnesium and oxygen which gives a white powder of the magnesium oxide.

The equation involved in the reaction can be summarised as;

2Mg(s) + O2(g) = 2MgO(s) + energy.........

The gain in mass 96.289g-93.000g=3.289g , was as a result of magnesium combinaing with oxygen in the air.

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Oct 17th, 2015

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