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Compare the mass of iron and oxygen before the reaction with the mass of rust resulting from the reaction?
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%
a
What else can I help you with?
Combustion is the rapid reaction between what?
Oxygen and a compound (or a mixture of compounds) able to burn.
Is rust a redox reaction?
Yes, rusting is a redox reaction. It involves the transfer of electrons between iron and oxygen, resulting in the formation of iron oxide (rust).
What do you get when you mix oxygen with sodium?
When oxygen is mixed with sodium, a chemical reaction occurs, resulting in the formation of sodium oxide. This reaction is highly exothermic and can be violent if not controlled properly. Sodium oxide is a white solid that is commonly used in industry.
Is the reaction between methane and oxygen exothermic or endothermic?
The reaction between methane and oxygen is exothermic, meaning it releases energy in the form of heat. This is because the bonds formed in the products (water and carbon dioxide) are stronger than the bonds in the reactants (methane and oxygen), resulting in a release of energy.
What is it called when oxygen combines with another substance?
When oxygen combines with another substance, it is called oxidation. Oxidation is a chemical reaction that involves the loss of electrons by a substance, resulting in the formation of an oxide.
What is a rapid reaction between fuel and oxygen resulting in fire.?
combustion
Compare and contrast the relationships of oxygen and water to fire?
- Oxygen support combustion; combustion is a reaction with oxygen, an oxydation.- Hydrogen is burned with oxygen.- Water can turn off some fires.
Combustion is the rapid reaction between what?
Oxygen and a compound (or a mixture of compounds) able to burn.
Is rust a redox reaction?
Yes, rusting is a redox reaction. It involves the transfer of electrons between iron and oxygen, resulting in the formation of iron oxide (rust).
Given 18.32 grams of aluminum and excess oxygen how many grams of oxygen are used?
To determine the grams of oxygen used, we need to compare the moles of aluminum with the moles of oxygen in the reaction. The balanced chemical equation for the reaction between aluminum and oxygen is 4Al + 3O2 -> 2Al2O3. Using the molar mass of aluminum (26.98 g/mol) and oxygen (16.00 g/mol), we can calculate that 18.32 grams of aluminum would use 27.27 grams of oxygen in the reaction.
How does reaction for photosynthesis compare to the cellular respiration?
they are they same. the products of photosynthesis are oxygen and glucose and the reactants of cellular respiration are gluose and oxygen.
What do you get when you mix oxygen with sodium?
When oxygen is mixed with sodium, a chemical reaction occurs, resulting in the formation of sodium oxide. This reaction is highly exothermic and can be violent if not controlled properly. Sodium oxide is a white solid that is commonly used in industry.
Is oxygen needed for a combustion reaction to take place?
Yes, oxygen is needed for combustion to take place. Combustion is a chemical reaction that involves the rapid combination of a fuel with oxygen, resulting in the release of heat and light energy. Without oxygen, the combustion process cannot occur.
If there are two atoms of oxygen and four atoms of hydrogen before the reaction what will be true after the reaction?
After the reaction, if the two atoms of oxygen and four atoms of hydrogen react to form water (H2O), the resulting molecules will contain two oxygen atoms and four hydrogen atoms in the water molecule. So, the total number of atoms will remain the same, with two hydrogen molecules combining with one oxygen molecule to form two water molecules.
Is the reaction between methane and oxygen exothermic or endothermic?
The reaction between methane and oxygen is exothermic, meaning it releases energy in the form of heat. This is because the bonds formed in the products (water and carbon dioxide) are stronger than the bonds in the reactants (methane and oxygen), resulting in a release of energy.
What is it called when oxygen combines with another substance?
When oxygen combines with another substance, it is called oxidation. Oxidation is a chemical reaction that involves the loss of electrons by a substance, resulting in the formation of an oxide.
How does oxygen supports burning?
Oxygen is an oxidizing element, in that it accepts electrons. Oxidizing elements are essential in combustion reactions as reactants. Once the amount of oxygen runs out, the reaction stops, therefore it supports burning by allowing the reaction to carry forward.
