Sucrose is an example of a pure substance. It is a disaccharide that can be broken down into glucose and fructose.
A pure substance is the same throughout. When a substance is 100% something it is pure.
silicon is a pure substance because it is an element and as we know an element is a pure substance
Air is not a pure substance.
pure substance
Sucrose is an example of a pure substance. It is a disaccharide that can be broken down into glucose and fructose.
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.
It depends on your definition of pure substance. In its natural state, honey is a pure substance. Natural honey is a pure natural substance producted by bees. However, honey is a mixture of a great many different elements.
pure substance, propanone
Pure substance
it is a pure substance.... not
Methane is a pure substance.
A pure substance is the same throughout. When a substance is 100% something it is pure.
Helium is pure as it is on the periodic table.
silicon is a pure substance because it is an element and as we know an element is a pure substance
Silicon is an element. Its symbol is Si.
Hydrolysis.