Conservation of Mass & Balancing Chemical Equations (OCR GCSE Chemistry A (Gateway Science Suite)): Quizzes
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Practise the questions
9 questions from this quiz
What does the law of conservation of mass state?
What does the law of conservation of mass state?
Mass of reactants equals mass of products
Why is mass conserved during a chemical reaction?
Why is mass conserved during a chemical reaction?
No atoms are created or destroyed
What must be the same on both sides of a balanced equation?
What must be the same on both sides of a balanced equation?
Number of atoms of each element
What are coefficients in chemical equations?
What are coefficients in chemical equations?
Numbers in front of formulas
Which equation is balanced: or ?
Which equation is balanced: or ?
What is the first step in balancing a chemical equation?
What is the first step in balancing a chemical equation?
Write the unbalanced equation
In , how many hydrogen atoms are on each side?
In , how many hydrogen atoms are on each side?
6 on each side
In a balanced equation, what is true about formula masses ()?
In a balanced equation, what is true about formula masses ()?
Sum of reactants' equals products'
What is relative formula mass ()?
What is relative formula mass ()?
Total mass of all atoms in a compound