No because if you put water in a pan and then ad coffee powder and evaporate it the coffee powder won't evaporate with it.
If the powder does not settle to the bottom if left undisturbed for a while, then it is in solution (dissolved). Solutions can be of either a physical or chemical nature. Salt water is a solution as well, despite that salt will be left behind if the water evaporates.
No, dissolving powder into water is a physical change, not a chemical change. The powder molecules are still the same chemical compounds as they were before dissolving, just dispersed in the water molecules.
The instant coffee and the water have not changed chemically or physically. It becomes a mixture, not a solution; the water is separate from the coffee powder. Therefore it is not a physical change.
Coffee dissolving, water boiling and chocolate melting are reversible physical transformations whereas wood burning is a chemical combustive transformation.
Mixing coffee with hot water is a physical change because the individual substances (coffee and water) retain their chemical identities and only the physical state of the coffee changes, dissolving in the water. No new substances are formed.
Yes, there is, it is a solution of coffee powder in water.
No, dissolving powder into water is a physical change, not a chemical change. The powder molecules are still the same chemical compounds as they were before dissolving, just dispersed in the water molecules.
It is a physical change. Dissolving is a physical property called solubility.
The instant coffee and the water have not changed chemically or physically. It becomes a mixture, not a solution; the water is separate from the coffee powder. Therefore it is not a physical change.
Coffee dissolving, water boiling and chocolate melting are reversible physical transformations whereas wood burning is a chemical combustive transformation.
Mixing coffee with hot water is a physical change because the individual substances (coffee and water) retain their chemical identities and only the physical state of the coffee changes, dissolving in the water. No new substances are formed.
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Coffee powder is partially soluble in water.
Yes, there is, it is a solution of coffee powder in water.
Dissolved in water containing coffee, not in coffee.
Dissolving in water is a physical change.
Dissolving sugar in hot water is a chemical change.
no it isn't. My 6th grade teacher told me that and i still don't really understand it.