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Detailed explanation-1: -A compound is a substance formed when two or more chemical elements are chemically bonded together. The type of bonds holding elements together in a compound can vary: two common types are covalent bonds and ionic bonds.

Detailed explanation-2: -Each molecule of a compound is made from two or more different kinds of atoms that are chemically bonded. Mixtures are made of two or more substances-elements or compounds-that are mixed physically but not chemically; they do not contain any atomic bonds.

Detailed explanation-3: -According to the definition of compounds, two or more elements combine together chemical to form a new substance called compound. Compounds are commonly termed as chemical compounds.

Detailed explanation-4: -Two things are true of all compounds: A compound always has the same elements in the same proportions. For example, carbon dioxide always has two atoms of oxygen for each atom of carbon, and water always has two atoms of hydrogen for each atom of oxygen. A compound always has the same composition throughout.