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Mixing sugar in a coffee is a physical change. Mixing sugar in coffee is a physical change because it does not form a new substance, it is still sugar and coffee. If you decided to mix sugar and water to make sugar water, the water could be left to evaporate and the sugar crystals would still be there. So mixing sugar in coffee is also very easy to reverse.
Cayla Ho
Wiki User
∙ 13y agoA physical change is one in which after the rxn. or process each constituent retains it's properties.
When we mix sugar and coffee, first of all they don't mix in each other... or in other words in that mixture sugar and coffee retain their respective properties. Moreover we can also separate the constituents from that mixture.
Wiki User
∙ 15y agoBecause it does not form a new substance,it is still sugar and coffee. If you decided to mix sugar and water to make sugar water, it is a physical change as the water could be left to evaporate and the sugar crystals would still be there.
Wiki User
∙ 13y agono, it's not because the identity of the coffee isn't being changed. It's still coffee, right? Yes it is. A chemical change will only occur when the identity of the substance is being changed.
For example, the process of making the coffee is a chemical change, because the milk and coffee beans have changed. The milk isn't milk anymore and the coffee beans aren't coffee beans anymore. These two ingredients have went through a chemical change to become coffee, so this would considered a chemical change, but adding sugar is NOT a chemical change, in fact, it is a physical change.
Wiki User
∙ 11y agoThat is a PHYSICAL CHANGE, seeing as the sugar can be filtered out of the coffee in the same state it was put in (and you could probably even remake it into a cube if you tried hard enough :P). There was no change in colour, and no heat, light or sound produced.
Wiki User
∙ 12y agoPhysical change - the sugar is dissolved in water and forms an aqueous solution, but no chemical change occurs.
Wiki User
∙ 12y agoNo.
Anonymous
Wiki User
∙ 15y agophysical
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