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Questions and Answers
What is the purpose of using chemical formulae instead of words in chemical equations?
What is the purpose of using chemical formulae instead of words in chemical equations?
- To violate the law of conservation of mass
- To make the equations longer and less useful
- To make the equations more concise and useful (correct)
- To confuse students
What does a chemical equation represent?
What does a chemical equation represent?
- A chemical reaction (correct)
- A mathematical equation
- A physical change
- A chemical formula
Why is it important to ensure that the number of atoms of each element is the same on both sides of a chemical equation?
Why is it important to ensure that the number of atoms of each element is the same on both sides of a chemical equation?
- To violate the law of conservation of mass
- To satisfy the law of conservation of mass (correct)
- To make the equation unbalanced
- To confuse students
What does a skeletal chemical equation represent?
What does a skeletal chemical equation represent?
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What does the law of conservation of mass state?
What does the law of conservation of mass state?
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Why do we need to balance a skeletal chemical equation?
Why do we need to balance a skeletal chemical equation?
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