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When green powder is heated it turns black and a gas is produced is this a reversible or irreversible change?
Wiki User
∙ 11y ago
when green powder is heated, it turns black and a gas is produced. in irreversible changes, new materials are always formed. given that a gas is produced, which is a new material, heating green powder is an irreversible change.
Wiki User
∙ 11y ago
Wiki User
∙ 10y agothis is irreversible because when this green powder is heated it gives of a gas leaves a black powder and in irreversible change new materials are formed thats why it is irreversible
Anonymous
when a green powder is heated .... it is an irreversible change
Anonymous
Reversible change
Anonymous
i dont know
Anonymous
irreversible
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Is it a physical or chemical change when the liquid mercury in a thermometer expands as it is heated?
physical change
Was heated butter in a frying pan a chemical reaction?
Yes it is because it is not reversible, and the butter changed colour.
What gas is produced when CaCO3 is heated?
A fart is created when CaCO3 is heated
Is potassium chlorate heated reversible?
Nope, when the heat melts it, the atoms change and produce oxygen, so it cannot re-cool into its original powder form because it's atomic structure has already changed.
What happens and what is produced when calcium is heated in air?
carbonoxide would be produced.
When a green powder is heated it turns black and a gas is produced is this a reversible or irreversible change?
when green powder is heated, it turns black and a gas is produced. in irreversible changes, new materials are always formed. given that a gas is produced, which is a new material, heating green powder is an irreversible change.
Is cream reversible or a irreversible?
No, it is not reversible as you can't get the ingredients to make the jelly back. Therefore it is an irreversible change. (first message on Answers.com.) This is what I thought originally as well; however, jelly is only a disolved into the water. It will change state to a solid when cooled, but, when heated, it will melt. If heated (slowly) the water will evaporate and leave the jelly crytals behind. Sort of like salty water. They might not look the same, but the water will return to its original state. Thus, jelly is a reversible change.
Can enzyme change?
Yes.VocabularyEnzymes- long linear chains of amino acids that can foldDenaturization- a process where enzymes move to their second structureMost enzymes can be denatured by heated or by certain chemicals. Some enzymes' denaturization is reversible, others is irreversible.
What does thermochromatic mean?
it refers to a substance undergoing a reversible change of colour when heated or cooled
Give an example of a reversible change?
An example of a reversible change is an ice cube meting into water and then changing back to an ice cube again if frozen. Another is chocolate melting when heated and changing back to a solid when cooled.
Is it a physical or chemical change when the liquid mercury in a thermometer expands as it is heated?
physical change
Is sugar being heated to produce steam and a black solid a chemical change?
Yes is it a chemical change as the process is irreversible. Also its properties are being changed and it looks different physically which always means a chemical change has occurred or will occur if certain substances are put together.
Was heated butter in a frying pan a chemical reaction?
Yes it is because it is not reversible, and the butter changed colour.
What gas is produced when CaCO3 is heated?
A fart is created when CaCO3 is heated
What happens and what is produced when calcium is heated in air?
carbonoxide would be produced.
Is potassium chlorate heated reversible?
Nope, when the heat melts it, the atoms change and produce oxygen, so it cannot re-cool into its original powder form because it's atomic structure has already changed.
When calcium carbonate is heated what gas is given off?
carbon dioxide is produced when it is heated
