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Questions and Answers
What is the difference between a chemical reaction and a chemical equation?
What is the difference between a chemical reaction and a chemical equation?
- A chemical reaction occurs in a laboratory setting, while a chemical equation occurs in nature.
- A chemical reaction is only applicable to organic compounds, while a chemical equation applies to inorganic compounds.
- A chemical reaction is the process of chemical transformation, while a chemical equation represents the reaction using symbols and formulas. (correct)
- A chemical reaction is reversible, while a chemical equation is irreversible.
What does the Law of Conservation of Mass state in relation to chemical reactions?
What does the Law of Conservation of Mass state in relation to chemical reactions?
- The mass of substances in a chemical reaction can be created or destroyed.
- The mass of reactants decreases in a chemical reaction.
- The mass of products is always greater than the mass of reactants in a chemical reaction.
- The total mass of substances does not change during a chemical reaction. (correct)
What is the purpose of balancing a chemical equation?
What is the purpose of balancing a chemical equation?
- To ensure that the same number of each type of atom is present on both sides of the equation. (correct)
- To make the equation easier to understand for non-scientists.
- To change the chemical properties of the substances involved in the reaction.
- To increase the speed of the chemical reaction.
What is the general form of a chemical equation?
What is the general form of a chemical equation?
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What does the coefficient in a chemical equation represent?
What does the coefficient in a chemical equation represent?
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In a chemical reaction, what does it mean if a substance is oxidized?
In a chemical reaction, what does it mean if a substance is oxidized?
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