5 Questions
Provide an example of a balanced chemical equation and explain its importance.
Example: 3Fe + 4H2O → Fe3O4 + 4H2. Balanced chemical equations have an equal number of atoms of each element on the reactant and product side, satisfying the law of conservation of mass in a chemical reaction.
What is a chemical equation?
A chemical equation is the symbolic representation of a chemical reaction, using symbols and formulae of the reactants and products.
Explain the process of a chemical reaction.
A chemical reaction is a process where substances combine to create a new substance with unique properties.
What are the characteristics of chemical reactions?
- Formation of a New Substance: Chemical reactions result in the formation of one or more new substances with different properties. 2. Change in Color: The color of substances involved in a chemical reaction may change. 3. Evolution of Gas: Gas production, such as bubbles or effervescence, is a common indicator of a chemical reaction. 4. Evolution or Absorption of Heat: Chemical reactions often involve the release or absorption of heat, leading to temperature changes.
What is the importance of a balanced chemical equation?
A balanced chemical equation ensures that there is an equal number of atoms of each element on the reactant and product side, satisfying the law of conservation of mass in a chemical reaction.
Test your knowledge of chemical reactions with this quiz. Learn about the process, chemical equations, and examples of reactions like zinc reacting with sulphuric acid to produce zinc sulfate and hydrogen gas.
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