1.What are important characteristics of occurrence of a chemical reaction?
2. What is the principle of chemical equation?
3. Write the principle of a balanced chemical equation?
4. What is the word chemical equation and what is its important in Chemistry?
5.Explain? i.) Rectants. ii.) Products.
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1. The characteristics of a chemical reaction are : Evolution of gas. Formation of a precipitate. Change in color
2. Balancing of a Chemical equation is based on the Principle of Atom Conservation (POAC) which states that the total number of atoms of each element in reactants must equal the number of atoms of that element in products. It is a derivation of Principle of Mass Conservation.
3. The principle of balancing an equation is to obey the law of conservation of mass,which states simply that matter cannot be created nor destroyed, but only transferred to a different format. When achemical equation is balanced, it displays the ratios in which the reactants react.
4. In chemistry, a word equation indicates the order of events of a chemical reaction. The number of moles and types of reactants yield the number of moles and types of products. Word equations help in learning chemistry because they reinforce the thought process involved in writing a chemical reaction or equation.
5. i) a substance that enters into and is altered in the course of a chemical reaction.
ii) A product is the item offered for sale. A product can be a service or an item. It can be physical or in virtual or cyber form. Every product is made at a cost and each is sold at a price. The price that can be charged depends on the market, the quality, the marketing and the segment that is targeted.