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A sugar is a pure substance.
Sugar is the generic name for many compounds which are all pure substances.
Fructose is a sugar. Glucose is a sugar. Lactose is a sugar.
Glucose + Fructose --> Sucrose
This is a chemical reaction between 2 sugars to make another, more complex sugar.
This reaction if I remember correctly eliminates a water molecule as well as producing sucrose. The reaction occurs in certain plants and is done by an enzyme. Mixing fructose and glucose in a bowl will NOT form sucrose. Refer to the wikipedia article on sugar. It shows the molecular structure of sucrose. A substance cannot have a molecular structure if it is a mixture. It is a compound and compounds are pure substances.
What else can I help you with?
Is pure sugar substance of element or mixture?
Pure sugar is a substance (compound).
Is sugar a mixture or a solution?
Pure sugar is a compound, which is a pure substance. If you dissolve sugar in water, you will have a homogeneous mixture, which is a solution.
Is white sugar a pure substance or mixture?
There are many types of sugar but, if you are describing one type of sugar and not a mixture of many sugars it would be a pure substance.
Is sugar solution a pure substance?
Refined substance can be a pure substance depending on the type of sugar used. If the refined sugar is white, then it is a pure substance. If it the refined sugar is brown, then it is not a pure substance.
Is a sugar dissolve in h2o a pure substance or a mixture?
Sugar dissolved in H2O is a mixture
Is sugar pure water a pure substance or a mixture?
cake
Is lactose a mixture or a pure substance?
Lactose is a pure substance. It is a disaccharide sugar composed of glucose and galactose.
When sugar is added to water does this make a pure substance or a mixture?
It makes a mixture.
Is lemonade a pure substance?
Lemonade is not a pure substance because it is a mixture of water, lemon juice, sugar, and possibly other ingredients such as ice. Each component can be separated from the mixture, indicating it is not a pure substance.
Is dissolved sugar a mixture or pure substance?
Dissolved sugar is a homogeneous mixture. While sugar is a pure substance in its solid form, when dissolved in water it forms a mixture where the sugar molecules are evenly distributed throughout the solvent.
Are jelly beans a pure substance?
No, jelly beans are not a pure substance. They are a mixture of sugar, flavoring, and other ingredients.
Is marshmallow a pure substance or mixture'?
It is a mixture since it is made of sugar and water together.
