1. States of matter
A section of Chemistry, 0620
Listing 10 of 212 questions
This question is about solids, liquids and gases. The list gives the names of nine substances which are solids at room temperature. a ceramic aluminium anhydrous cobalt(chloride anhydrous copper(sulfate calcium oxide graphite iodine iron sodium Answer the following questions about these substances. Each substance may be used once, more than once or not at all. State which substance: turns pink when water is added to it is a non-metal which is used as a lubricant is used to neutralise acidic industrial waste is extracted from bauxite is used as an electrical insulator. Some changes of state of sodium are shown. solid sodium liquid sodium sodium gas A freezing B evaporation State the names of the changes of state represented by A and B. A B  Use the kinetic particle model to describe the arrangement and separation of the particles in: solid sodium liquid sodium.  
0620_w19_qp_31
THEORY
2019
Paper 3, Variant 1
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Tin is a solid at room temperature. State two general properties of a solid.  Fig.4.1 shows the physical states of tin. solid tin liquid tin tin gas A B Name the changes of physical states A and B. A B  Describe solid and liquid tin in terms of the separation and motion of the particles. solid tin separation motion liquid tin separation motion  A sealed gas syringe contains 80 cm3 of carbondioxide gas. State how decreasing the temperature affects the volume of carbondioxide gas in the gas syringe when the pressure remains constant. 
0620_w23_qp_32
THEORY
2023
Paper 3, Variant 2
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Nitrogen is a gas at room temperature. State two general properties of a gas.  Fig.4.1 shows the physical states of nitrogen. solid nitrogen liquid nitrogen nitrogen gas A B Name the changes of physical states A and B. A B  Describe solid nitrogen and nitrogen gas in terms of the arrangement and separation of the particles. solid nitrogen arrangement separation nitrogen gas arrangement separation  A sealed gas syringe contains 80 cm3 of nitrogen gas. State how increasing the pressure affects the volume of nitrogen gas in the gas syringe when the temperature remains constant. 
0620_w23_qp_33
THEORY
2023
Paper 3, Variant 3
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Questions Discovered
212