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When 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 rubbing a marker on a paper a chemical reaction?
It is simply a physical change, because the attributes of the paper are not changing.
Is drying cloths is chemical change?
It is a Physical Change because i dont know but im sure that is a physical change :P
Is deposition chemical or physical change?
deposition occurs because the water current there is slower than the outside.
Is chopping meat into pieces is a physical change?
I dont nkow
What materials were used to make the empire state building?
i dont noask ballaltry to google it
What materials use to build the empire state building?
i dont noask ballaltry to Google it
Give an example of a physical change of state?
i dont know i really dont konw yes i can water turning into ice
A change in state is a change in what?
I don't know why don't you tell me!?Don't Be Rude and dont answer questions like that! PS it's a PHYSICAL CHANGE!
What materials are extracted from mining for building materials?
i dont know the answer, thats why i ask you
State Bank of Hyderabad ATM card status?
I have applied for atm card in november 2011, but still I dont receive it. Plese issue it to me........ my ac/ No: 6216748819-9
How can you use materials of different densities?
I dont no
What materials you need for a antarctica diorama?
i dont no
How do THE properties of materials determine their use?
They dont
How do you make violin with recyclable materials?
You dOnt
What raw materials are used to make a car?
you dont make it out of materials you use wood&glass.
What materials did Peter adcock work with?
dont know
