Conservation of mass
Quiz by Oak National Academy: GCSE Chemistry OCR Higher
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6 questions
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- Q1What are the building blocks of all matter?moleculesatomscompounds30s
- Q2Atoms cannot be created or ...Users enter free textType an Answer30s
- Q3Match the formulae of the substances to the name of the substance. Use your periodic table to help.Users link answersLinking30s
- Q4Name the elements and number of atoms of each type in (NH₄)₂SO₄ammonium (2), sulfur (1) and oxygen (4)nitrogen (2), hydrogen (8) and oxygen (4)nitrogen (2), hydrogen (8), sulfur (1) and oxygen (4)nitrogen hydride (2) sulfur oxide (4)nitrogen (1) hydrogen (4) sodium (4)30s
- Q5Hydrogen reacts with oxygen to form water as steam. Match up the following statements to make complete sentences about this reaction.Users link answersLinking30s
- Q6Methane (CH₄) burns to produce carbon dioxide (CO₂) and water (H₂O). Count how many atoms of each element are on the left and right hand side of the equation. Are they equal? CH₄ + 2O₂ → CO₂ + 2H₂Ocarbon (1), hydrogen (4) oxygen (2)-> carbon (1), hydrogen (4) oxygen (3) Yescarbon (1), hydrogen (4) oxygen (4)-> carbon (1), hydrogen (4) oxygen (4) Yescarbon (1), hydrogen (4) oxygen (4)-> carbon (1), hydrogen (4) oxygen (4) Nocarbon (4), hydrogen (4) oxygen (2)-> carbon (2), hydrogen (4) oxygen (3) Yes30s