10 Questions
What is the purpose of balancing a chemical equation?
To ensure that the total mass of elements remains the same before and after the reaction.
What does it mean for a chemical equation to be balanced?
The number of atoms of each element is the same on both sides of the equation.
Explain why a skeletal chemical equation needs to be balanced.
To make sure that the number of atoms of each element remains the same before and after the reaction.
How can you tell if a chemical equation is balanced?
By comparing the number of atoms of each element on both sides of the equation.
What is the first step in balancing a chemical equation?
Counting the number of atoms of each element on both sides of the equation.
Why is it important to balance the chemical equation for a reaction?
To ensure that mass is conserved and the reaction obeys the law of conservation of mass.
How do coefficients help in balancing a chemical equation?
Coefficients are used to adjust the number of molecules of each substance to balance the equation.
Why are the coefficients used in balancing chemical equations usually whole numbers?
To maintain the integrity of the chemical formula and represent whole molecules.
What happens if a chemical equation is unbalanced?
The mass is not the same on both sides of the equation.
Which law of chemistry states that mass can neither be created nor destroyed in a chemical reaction?
The law of conservation of mass.
Learn how to balance chemical equations step by step using the example of balancing the equation Fe + 4 H2O → Fe3O4 + 4 H2. Understand the process of equalizing the number of atoms on both sides of the equation.
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