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Caffeine is actually a non-polar substance, and normally would not dissolve in water, but since it contains some polar bonds it is able to dissolve in hot water. This is how they decaffeinate coffee, the coffee beans are soaked in hot water and all the flavoring, caffeine and aroma are extracted. Then it is put through a carbon filter which holds back all the caffeine so the flavoring and aroma can be added back into the bean, roasted, and ground to make you morning cup of decaffeinated coffee!
Wiki User
∙ 13y ago
Wiki User
∙ 13y agoYou've probably heard that "like attracts like." So you have water, which is polar, and something else. If that something else is also polar, then it'll dissolve, if it's non-polar, it won't.
A solution is actually just a homogeneous mixture that has a solute dissolved in a solvent.
Wiki User
∙ 11y agoWhen a substance is very hot there is a convection current in it. Since solids have no inter-particle space, there is no current. But in liquids like water, convection takes place as the hot substances rise while the cold ones sink.
In this coffee-water problem, due to the circulation of water, the coffee mixes easily.
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What substance is not soluble in water sand salt sugar powdered drink mix?
The substance that is not soluble in water is sand. Salt, sugar, and powdered drink mix are all soluble in water and will dissolve when mixed with it.
Will powdered chalk dissolve?
Calcium carbonate is insoluble in water.
What takes longer to dissolve in water a salt cube or powdered salt?
A salt cube
Is powdered drink mix dissolved in water homogeneous?
yes
What things dissolve in daily life?
Many things dissolve in daily life. For example, both salt and sugar will dissolve in water in daily life. Most powdered drinks and vitamins will also dissolve.
What substance is not soluble in water sand salt sugar powdered drink mix?
The substance that is not soluble in water is sand. Salt, sugar, and powdered drink mix are all soluble in water and will dissolve when mixed with it.
What did the powdered drink mix dissolve easily when stirred?
saturated
If you put powdered milk in hot water how fast does milk dissolve?
It won't. Put powdered milk in cold water to dissolve.
Is it easy to dissolve the powdered milk in warm water?
yes
Can powdered juice dissolve in 1 cup of water?
Yes it can.
Will powdered chalk dissolve?
Calcium carbonate is insoluble in water.
What will happen with a spoon of dried powdered juice when placed in water?
It was dissolved
Which will dissolve faster in powdered sugar crystal sugar or lump sugar in a glass of tap water?
Powdered sugar crystal
What takes longer to dissolve in water a salt cube or powdered salt?
A salt cube
Is powdered drink mix dissolved in water homogeneous?
yes
Is stirring powdered ginger in water will dissolve fast?
No, it won't dissolve much at all. Ginger (the spice) is the root of a plant, and powdered ginger is therefore, more or less, pleasantly-flavored sawdust and just about as soluble.
How fast does the powdered chocolate dissolve in water?
That really depends upon the temperature of the water. And not all powdered chocolate has the same formulation. But generally, it dissolves quickly, maybe in 15 seconds.
