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Chemical Equations and Formulae Quiz

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Questions and Answers

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?

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?

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?

An unbalanced reaction Signup and view all the answers

What does the law of conservation of mass state?

The total mass of the elements in products must be equal to the total mass in reactants Signup and view all the answers

Why do we need to balance a skeletal chemical equation?

To comply with the law of conservation of mass Signup and view all the answers

Chemical Equations and Formulae Quiz

Choose a study mode

Podcast

Questions and Answers

What is the purpose of using chemical formulae instead of words in chemical equations?

What does a chemical equation represent?

Why is it important to ensure that the number of atoms of each element is the same on both sides of a chemical equation?

What does a skeletal chemical equation represent?

What does the law of conservation of mass state?

Why do we need to balance a skeletal chemical equation?

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