Rubber is a substance. Natural rubber is formed of elastic hydrocarbon polymers, which are almost exclusively made up of isoprene (a hydrocarbon diene monomer). Synthetic rubber is also a polymer, but also contains monomeric units from different chemical families. Regardless of the make up of the monomers, the polymer is technically only one molecule so it is a substance. Out of interest, if you heat up most rubber it will melt and liquify. If you then cool this rubber it will reset into the original rubber nature.
A balloon is typically considered a mixture because it is made up of various materials, including the rubber or latex of the balloon itself and the air or gas inside it. The rubber or latex is a polymer, which is a type of pure substance, but the contents, like air, consist of different gases mixed together. Therefore, the overall composition of a balloon is classified as a mixture.
An element - substance - NOT a mixture.
a mixture is not a substance
a mixture is not a substance
No, it is a mixture; rarely a drug is a pure substance.
a mixture
pure substance?
Ice cream is a mixture.
It is a mixed substance. ---------------------------------------------- It is a mixture
It would be an mixture
No a mixture is by definition not a pure substance.
Substance