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The products of a complete burning are carbon dioxide (sometimes oxides of nitrogen and sulfur), water vapors and a residue of oxides. Of course these compounds are very different from the reactants - chemically and physically. Different compounds have different properties.
No. Substances are made of atoms. Some atoms combine with other atoms to form compounds.
Because the proportions of the elements are different in the different compounds. They may contain the same elements, but the different proportions make them different compounds with different properties.
A substance must have the properties of physical properties in order to be observed and measured.
A mixture is formed from compounds but both are formed from atoms.
Compounds are made up of elements. There is chemical reaction. The properties are totally different in case of the compounds than that of the elements.
No. Compounds and mixtures are made of elements and can be broken down, as in table salt which is Sodium Chloride and can be split into sodium and chlorine gas, which are elements that have different properties.
A substance that has properties different from the chemical elements in it is a chemical compound. A chemical compound is built from chemical elements that are chemically bonded together. And the "finished product" will have chemical properties that are unique to that compound, and different from the properties of the substances that make it up.
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The products of a complete burning are carbon dioxide (sometimes oxides of nitrogen and sulfur), water vapors and a residue of oxides. Of course these compounds are very different from the reactants - chemically and physically. Different compounds have different properties.
Compounds are comprised of different elements, for example water, H2O is a compound formed by the elements Hydrogen and Oxygen.
They have different properties because the element that make up these compounds are different, water is made up of 2 hydrogen atoms, and 1 oxygen while table salt is made of a sodium and a chlorine atom. These different combinations make up different properties. Why the elements that make up these compounds have different properties however is a different question.
Elements: Pure substance. Made up of only itself (Ex: Oxygen).Compound: A substance made up of two or more elements that are chemically combined (Ex. Water- dihydrogenmonoxide= H2O).Mixture: Combination of substances (substances can be elements, compounds, or both). These substances are NOTchemically combined, which means that mixtures are differentfrom compounds.
No. Substances are made of atoms. Some atoms combine with other atoms to form compounds.
Two or more elements are chemically bonded.
No. Compounds have unique chemical and physical properties different from the elements of which they are made.
Because the proportions of the elements are different in the different compounds. They may contain the same elements, but the different proportions make them different compounds with different properties.