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Why heating copper wire in the presence of air at high temperature a chemical change Why?
Heating copper wire in the presence of air at high temperatures causes a chemical change because it leads to the oxidation of copper. When exposed to oxygen, copper reacts to form copper oxide, resulting in a new substance with different properties. This transformation involves a rearrangement of atoms and bonds, characteristic of a chemical change, as opposed to a physical change where the substance remains the same.
What else can I help you with?
Is heating a sugar a chemical change?
Depends on the temperature! If it gets brown, yes.
Is adding magnesium and heat chemical or physical change?
Heating magnesium is a physical process.But the reaction of magnesium with oxygen at high temperature is a chemical process.
Is heating mercuric oxide a physical or chemical change?
This is a chemical reaction; oxygen is released.
Is the heating of a solution of powdered milk a chemical change?
If it is a chemical change it will have a change in color (not meaning food coloring was added) precipitate (solid) was formed, release of gas, new substance was formed, temperature change. If something is baked it was a chemical change
Is oxygen a chemical change or a physical?
Oxygen is a chemical element, so its presence does not involve a chemical change. It undergoes physical changes such as changes in state (gas to liquid) based on temperature and pressure.
Heating a frying pan is chemical or physical change?
Heating a frying pan is a physical change. A chemical change is when you change the chemical properties. Heating the pan is only changing the temperature of the pan not the chemical make up.
Is heating a sugar a chemical change?
Depends on the temperature! If it gets brown, yes.
What is a chemical change a.Heating of ZnO b.magnetization of iron c.heating of sulfur d. radioactivity?
heating of sulfur in presence of oxygen (or air) is a chemical change.
What causes a chemical change?
No, not always. For example, if you mix salt and water, no chemical change takes place. The salt dissolves in the water and a solution is formed, which is not a chemical change because the salt and water retain their individual chemical compositions.
Is adding magnesium and heat chemical or physical change?
Heating magnesium is a physical process.But the reaction of magnesium with oxygen at high temperature is a chemical process.
Is a cooked hot dog physical or chemical change?
CHEMICAL:)
Is heating up sulfur a chemical change?
It is not a chemical change, unless you heat it sufficiently to make it catch fire.
Is heating mercuric oxide a physical or chemical change?
This is a chemical reaction; oxygen is released.
Is heating an iron nail a physical or chemical change?
Heating is a physical change.
Is heating red lead in a test tube a chemical change?
Yes, heating red lead in a test tube is a chemical change. The process of heating causes the red lead to undergo a chemical reaction, leading to a change in its chemical composition. This change is irreversible.
Is heating water in a pan chemical change?
Heating water in a pan is a physical change, not a chemical change. The heat energy causes the water molecules to gain kinetic energy, leading to an increase in temperature and a phase change from liquid to gas (steam). The chemical composition of water remains the same.
How does temperature affect physical and chemical chemical change?
A change in temperature can change the rate of physical or chemical change.
