States of matter
Quiz by Stephen Baggaley
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- Q 1/12Score 0The circles in the diagrams represent molecules of hydrogen. Which box represents hydrogen gas.29CAB
12 questions
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- Q1The circles in the diagrams represent molecules of hydrogen. Which box represents hydrogen gas.CAB30s
- Q2Change of state 1 is calledmeltingcondensingboilingfreezing30s
- Q3Change of state 2 is calledcondensingfreezingboilingmelting30s
- Q4Change of state 3 is calledevaporationmeltingcondensationboiling30s
- Q5Change of state 4 is calledfreezingevaporationmeltingcondensation30s
- Q6Sublimation is the change of state fromsolid to gasgas to liquidliquid to gassolid to liquid30s
- Q7Which statement best describes the movement of the particles in a gas?The particles slide past one another.The particles vibrate about fixed positions.The particles do not move at all.The particles move freely.30s
- Q8Some solid substances turn straight from solid to gas, when they are heated. Which is the best explanation for this?On heating, the particles move around very easily.The forces between the particles in the solid are weak.The forces between particles are the same in the gas and the solid.The particles gain enough energy to overcome all the forces between them.30s
- Q9A crystal of purple potassium manganate(VII) is dropped into water. Which one of these diagrams shows the particles after diffusion?DBCA30s
- Q10Choose the best answer. Diffusion is ...the way particles in a gas spread out further when they are heated.a method of stirring, to dissolve a solute in a solvent.the way particles spread as a result of random collisions.the way particles escape from a liquid when they gain enough energy.30s
- Q11A liquid was cooled to below its freezing point. Which of these represents its cooling curve?CDAB30s
- Q12Gas jar X contains a dense brown gas. lt is placed over Y, which contains air. Which one of these will not occur?The gases will mix even if X is placed below Y.All the brown gas will sink to the lower gas jar.The colour will spread evenly through both gas jars.The gases will mix faster at a higher temperature.30s
