Elements, Compounds and Mixtures

Questão	Responda
What is an element?	An element is a substance that cannot be separated into anything simpler & contains only one type of atom.
What is a compound?	A compound is a substance that consists of two or more elements chemically combined. The amounts of each element are in fixed proportions. A compound can only be broken down by chemical means and not by physical methods.A compound has different properties to the element it contains.
What is a mixture?	A mixture can be separated into simpler substances by physical means. The amounts of these substances can be present in any proportion. The properties of a mixture are the same as those of the substances it contains.
What are the methods of separating substances physically?	filtration, evaporation, chromatography, magnets

Resumo de Recurso

	Criado por Mia Frewin quase 7 anos atrás