what is elements, mixtures,compounds
Answers
Answer:
Elements :
Elements are substances that are made from one type of atom. An element cannot be broken down into any other substance. Example : Oxygen , iron etc..
Mixtures :
Mixture is made by simply mixing together elements and compounds. No new chemical bonds are formed.
Compound :
Compounds are substances made from atoms of different elements joined by chemical bonds. They can only be separated by a chemical reaction. Examples are water (H2O), salt (sodium chloride, NaCl), methane (CH4).
Answer:
element_an element is a pure substance consisting only of atoms that all have the same numbers of protons in their atomic nuclei. Unlike chemical compounds, chemical elements cannot be broken down into simpler substances by chemical means.
mixture_
, a mixture is a material made up of two or more different substances which are not chemically combined. A mixture is the physical combination of two or more substances in which the identities are retained and are mixed in the form of solutions, suspensions and colloids
compounds_A chemical compound is a chemical substance composed of many identical molecules composed of atoms from more than one element held together by chemical bonds. A molecule consisting of atoms of only one element is therefore not a compound.