Measurement, Mass & Equations (AQA GCSE Chemistry): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What does the law of conservation of mass state about reactants and products?
What does the law of conservation of mass state about reactants and products?
Total mass of reactants = products
Why is mass conserved during a chemical reaction?
Why is mass conserved during a chemical reaction?
Atoms rearranged, not created/destroyed
What does a 'balanced' chemical equation show?
What does a 'balanced' chemical equation show?
Same number of each atom on both sides
What are coefficients in a chemical equation?
What are coefficients in a chemical equation?
Numbers in front of formulas
What is the first step when balancing a chemical equation?
What is the first step when balancing a chemical equation?
Write the unbalanced equation
What is the balanced equation for ?
What is the balanced equation for ?
In unbalanced , how many H atoms are on the right side?
In unbalanced , how many H atoms are on the right side?
3
In a balanced equation, how do the formula masses () of reactants and products compare?
In a balanced equation, how do the formula masses () of reactants and products compare?
Sum of reactants = products
What is relative formula mass ()?
What is relative formula mass ()?
Total mass of all atoms in compound
How is relative formula mass () calculated?
How is relative formula mass () calculated?
Add up of all elements