life are the result of chemical changes. Chemical reactions help us understand the properties of matter. By studying the way a sample interacts with other matter, we can learn its chemical properties. These properties can be used to identify an unknown specimen or to predict how types of matter might react with each other. By observing chemical reactions, we are able to understand and explain how the natural world works. We have discussed a lot of reactions. Like Synthesis, Decomposition, Displacement
substance, as only water remains after burning. As illustrated in figure 1, methane hydrate occurs between sand particles underground. Methane is the main component of natural gas, and its development closely follows the procedure as natural gas (Unknown author, 2002). Natural gas has no smell and colour, but the sour odour that we do associate with gas is only for safety and leakage protection, which is done through a process of odourization. The process includes addition of multiple compounds, mixtures
nutrients which are deficient in soils. Farmers turn to fertilizers because these substances contain plant nutrients such as nitrogen, phosphorus, and potassium. Fertilizers are simply plant nutrients applied to agricultural fields to supplement required elements found naturally in the soil. Fertilizers have been used since the start of agriculture (Soil matter, 2011). It comes in two basic types: organic and chemical fertilizers. Organic fertilizers are made from natural, organic (living) materials, such