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Compare the mass of iron and oxygen before the reaction with the mass of rust resulting from the reaction?
Wiki User
∙ 15y ago
The mass of iron plus the mass of oxygen used in the reaction is equal to the mass of rust formed after the reaction.
Iron, Fe Relative Atomic Mass = 55.85 g/mol
Oxygen, O Ar = 16.00 g/mol
Rust, Fe2O3 Relative Molar Mass = 2 x 55.85 + 3 x 16.00
Mr = 159.7 g/mol
Percentage of iron by mass = (2 x 55.85)/ 159.7 x 100
= 69.94%
Percentage oxygen by mass in rust = 30.06%
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Wiki User
∙ 13y ago
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Why does Alex's equation better represent the reaction?
The number of oxygen atoms is the same before and after the reaction.
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Fire is a chemical reaction between oxygen and some flammable material. Without oxygen the reaction cannot occur.
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Why does Alex's equation better represent the reaction?
The number of oxygen atoms is the same before and after the reaction.
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Is oxygen a chemical reaction?
Oxygen is an element, not a reaction of any form.
What are the colors of copper before and after a reaction with oxygen?
it is the same colour and does not change - it is and always will be metallic golden
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During light dependent reaction photolysis of water takes place resulting in to the formation of energy rich compounds like NADPH2 and ATP from NADP and ADP. Oxygen is liberated as a bye-product.
If you remove oxygen from a metal oxide what is the reaction type?
the reaction type will (reduction) taken away oxygen from the reaction
Can you get the copper oxide from burning copper with oxygen?
Yes, copper oxide can be obtained by burning copper with oxygen. When copper is heated in the presence of oxygen, it undergoes a chemical reaction to form copper oxide. The resulting copper oxide can be collected and used for various purposes.
Is moecular oxygen a reaction during a combustion?
No. Molecular oxygen is a reactant in a combustion reaction.
If there are two atoms of oxygen and four atoms of hydrogen before the reaction what will be true after the reaction?
Two water molecules and a release of energy. This is how fuel cells work.
