Averages for Havana in August. The month of August can be unbearably hot in Havana. Visitors at this time of year are often there for one purpose and that is to swim in the incredibly warm waters of the Gulf of Mexico. As the midday heat descends upon the Cuban capital city, Havana, everyone heads to the water or inside to keep cool.
Mixture-A physical blend of two or more substances that are NOT chemically combined. Compound-A substance that contains two or more elements CHEMICALLY combined in a fixe â¦ d proportion. Compound is chemically combined, mixture is not chemically combined.
A mixture is a substance made by  combining two or more different materia â¦ ls in such a way that no  chemical reaction occurs. A mixture can usually be separated back  into its original components, a compound can not.   Compounds    Compounds are pure substances.