Law of Conservation of Mass: Introducing Stoichiometry (LC 2027) (Leaving Cert Chemistry): Quizzes
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Practise the questions
11 questions from this quiz
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Practise the questions
11 questions from this quiz
What does the Law of Conservation of Mass state about atoms in a chemical reaction?
What does the Law of Conservation of Mass state about atoms in a chemical reaction?
Atoms are rearranged, not created/destroyed
When balancing equations, what can you change?
When balancing equations, what can you change?
Only the coefficients
What is the balanced equation for methane combustion: ?
What is the balanced equation for methane combustion: ?
What is the first step when balancing a chemical equation?
What is the first step when balancing a chemical equation?
Count atoms of each element on both sides
What does an unbalanced chemical equation incorrectly suggest?
What does an unbalanced chemical equation incorrectly suggest?
Atoms have vanished or appeared
In , how many molecules of water are produced from 2 molecules of ?
In , how many molecules of water are produced from 2 molecules of ?
2 molecules
What is Avogadro's constant?
What is Avogadro's constant?
In , how many moles of react with 2 moles of ?
In , how many moles of react with 2 moles of ?
1 mole
In the reaction 4g + 32g → 36g , what principle is demonstrated?
In the reaction 4g + 32g → 36g , what principle is demonstrated?
Mass is conserved in reactions
What does the term 'stoichiometry' literally mean from its Greek origins?
What does the term 'stoichiometry' literally mean from its Greek origins?
'element' and 'measure'
What should you do before attempting any stoichiometric calculations?
What should you do before attempting any stoichiometric calculations?
Balance the equation