Need help with my writing homework on Elements, Compounds and Mixtures. Write a 1250 word paper answering;  .Compounds are formed through a chemical reaction involving two or more elements resulting into a new substance. In the chemical reaction, heat energy is either generated or used, leading to drastic change in mass of the product from the initial constituents. The new substance formed in the chemical reaction has different physical and chemical properties from the substituent elements (an Oxlade, 2007). However during formation of mixtures, no new substance is formed because it is a physical process. The resulting mixture could exist in different physical state but it still retains the physical and chemical properties of individual pure substances that formed it. In addition, the formation of mixtures is not accompanied by changes then mass. Therefore, the weight of the mixture is the cumulative weights of individual pure substances in it.
A pure substance could be a compound or an element. An element consists of the same type of atoms, which are shown using the same symbol. For example metals such sodium (Na), iron (Fe), copper (Cu), Magnesium (Mg) are elements. Non-metals such Sulphur(S), Phosphorous (P), Carbon(C) and hydrogen( H2), chlorine,(Cl2) among others are also elements. However, a compound consist of two or more different atoms, indicated using different symbols. For example sodium chloride (NaCl), carbon monoxide (CO), and sodium carbonate (Na2CO3 ) among others. An element cannot be split into simpler components, but compound can be split into the substituent elements or atoms (Patten, 1995). For instance, you cannot split hydrogen element into other different atoms because it consists of the same type of atoms. However, water, which is a compound, can be split into hydrogen and oxygen atoms. .