A 10.0-g sample of magnesium reacts with oxygen to form 16.6 g of magnesium oxide. How many grams of oxygen reacted?
1 answer:
6.6 grams of oxygen reacted with magnesium to give magnesium oxide.
<h3>What is law of conservation of mass?</h3>When a chemical reaction takes place the total mass of reactants is always equal to the mass of products.As in a chemical reaction the atoms are neither created nor destroyed rather they rearrange themselves.
The reaction between magnesium and oxygen is as follows,
2 Mg+O₂2 MgO
According to the question, 10 g of magnesium is utilized to produce 16.6 g of magnesium oxide.In order to find mass of oxygen utilized ,
mass of oxygen=mass of magnesium oxide-mass of magnesium
substituting the given data,
mass of oxygen=16.6-10=6.6 g
Thus, 6.6 grams oxygen reacted to produce 16.6 grams of magnesium oxide.
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Answer:
Explanation:
1. Number of electrons
2. Number of protons
3. Identify the ion
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A neutral atom of iron would have 26 electrons.
The ion has only 24 electrons, so it has lost two. The ion must have a charge of +2.