As temperature decreases, the rate of dissolution or solubility decreases. so sugar will dissolve slowly in cold water than water at room temperature.
Sugar will dissolve faster in hot water.
Solvent
Sugar. Coffee will not disolve in water (though there are some soluble components in coffee that will dissolve out of it - which is why we use it).
Yes. You could try melting it over a Bunsen burner - the sugar will melt readily whereas the salt will not. You could also try dissolving the substance in alcohol. The salt will dissolve only very slightly, but the sugar will dissolve readily.
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The Answers to this Question is Brass in a solid form, air in a gas form, and Aqueous in a liquid form.
Solvent
It is heterogeneous because cream is not soluble in the coffee as sugar.
Sugar. Coffee will not disolve in water (though there are some soluble components in coffee that will dissolve out of it - which is why we use it).
Granulated sugar has more surface area exposed to the coffee, therefore it will dissolve faster.
Sugar solution
Of course, you can drink coffee as it comes, black coffee, with milk or cream, white coffee, you can add sugar to any combination, black or white sweet coffee.
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What happens when you put it into your coffee? Does it dissolve or not?
Yes. You could try melting it over a Bunsen burner - the sugar will melt readily whereas the salt will not. You could also try dissolving the substance in alcohol. The salt will dissolve only very slightly, but the sugar will dissolve readily.
Yes, just not as quickly
"Black" coffee is coffee without milk and sugar.
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