Which of the following statements best describes the arrangement of particles in a gas? [sm-1]
Which of the following statements best describes the arrangement of particles in a solid? [sm-2]
Which of the following statements best describes the arrangement of particles in a liquid? [sm-3]
Which of the following best describes what happens to the particles of water when it freezes? [sm-4]
Which of the following best describes what happens to the particles of ice when it melts? [sm-5]
Which of the following best describes what happens to the particles of water when it boils? [sm-6]
Which of the following best describes what happens to the particles of water vapour when it condenses? [sm-7]
Which of the following best describes what happens to the particles of water when it evaporates? [sm-8]
The table shows the melting points and boiling points of some substances. Which substance is a solid at 25oC? [sm-9]
The table shows the melting points and boiling points of some substances. Which substance is a liquid at 0oC? [sm-10]
The table shows the melting points and boiling points of some substances. Which substance is a gas at 0oC? [sm-11]
The table shows the melting points and boiling points of some substances. Which substance is a liquid at 30oC? [sm-12]
Air is confined in a glass bottle with a tight screw-top. When the bottle becomes warmer when heated with a hair-dryer, the pressure inside increases because the molecules of air? [sm-13]
Air is in a glass bottle with a tight screw-top. When the bottle becomes cooler when placed in a refrigerator, the pressure inside decreases because the molecules of air? [sm-14]
When the air in a room becomes warmer a hanging balloon blown up with air becomes bigger because the molecules of air? [sm-15]
When the air in a room becomes cooler a hanging balloon blown up with air becomes smaller because the molecules of air? [sm-16]
The table shows the melting points and boiling points of some substances. Which substance is a liquid at 20 oC? [sm-17]
The table shows the melting points and boiling points of some substances. Which substance is a solid at 20oC? [sm-18]
The table shows the melting points and boiling points of some substances. Which substance is a gas at -60oC? [sm-19]
The table shows the melting points and boiling points of some substances. Which substance is a liquid at -10oC and a gas at 10oC? [sm-20]
Which of the following graphs represents how the temperature of liquid varies as it becomes a solid? [sm-21]
Which of the following graphs represents how the temperature of gas varies as it becomes a liquid? [sm-22]
Which of the following graphs represents how the temperature of solid varies as it becomes a liquid? [sm-23]
Which of the following graphs represents how the temperature of liquid varies as it becomes a gas? [sm-24]
Which of the following graphs represents how the temperature of gas varies as it eventually becomes a solid? [sm-25]
Which of the following graphs represents how the temperature of solid varies as it eventually becomes a gas? [sm-26]
























































Gases diffuse because they? [sm-48]
Liquids and dissolving solids diffuse because they? [sm-49]
The table below shows the melting points and boiling points of substances A to D. Which substance is suitable to use in a thermometer that measures in the range 10oC to 90oC? [sm-54]
The table below shows the melting points and boiling points of substances A to D. Which substance is suitable to use in a thermometer that measures in the range -120oC to 20oC? [sm-55]
The table below shows the melting points and boiling points of substances A to D. Which substance is suitable to use in a thermometer that measures in the range 0oC to 100oC? [sm-56]
The table below shows the melting points and boiling points of substances A to D. Which substance is suitable to use in a thermometer that measures in the range -4oC to 50oC? [sm-57]
Which of the following best explains why gases diffuse throughout a container? [sm-66]
Which of the following best explains why gases have a low density? [sm-67]
A solution of sodium chloride conducts electricity because the? [cb-6]
An atom can turn into an ion if it? [cb-7]
An atom can turn into an ion if it? [cb-8]
When a covalent bond is formed between atoms of different elements ? [cb-9]
When an ionic bond is formed between atoms of different elements? [cb-10]
Metal atoms form ions with a positive charge by? [cb-11]
Non-metal atoms form ions with a negative charge by? [cb-12]
Atoms of Group 7 of the Periodic Table are most likely to form ions with? [cb-13]
Atoms of Group 1 of the Periodic Table are most likely to form ions with? [cb-14]
Atoms of Group 6 of the Periodic Table are most likely to form ions with [cb-15]
Atoms of Group 2 of the Periodic Table are most likely to form ions with? [cb-16]
Which electronic diagram is correct for the compound formed by combining a metal M, from Group 1, with a non-metal X from Group 7 of the Periodic Table? [cb-17] 



Which electronic diagram is correct for the compound formed by combining a metal M, from Group 1, with a non-metal X from Group 6 of the Periodic Table? [cb-18] 



Which electronic diagram is correct for the compound formed by combining a metal M, from Group 2, with a non-metal X from Group 6 of the Periodic Table? [cb-19] 



Which electronic diagram is correct for the compound formed by combining a metal M, from Group 2, with a non-metal X from Group 7 of the Periodic Table? [cb-20] 



Which electronic diagram is correct for the compound formed by combining a metal M, from Group 3, with a non-metal X from Group 6 of the Periodic Table? [cb-21] 



Which electronic diagram is correct for the compound formed by combining a metal M, from Group 3, with a non-metal X from Group 7 of the Periodic Table? [cb-22] 





A substance has an ionic structure. It conducts electricity when molten but not when solid. The substance could be? [cb-26]
Which of the following substances consists of small molecules? [cb-27]
Molten or dissolved sodium chloride conducts electricity. The current is carried in the melt by? [cb-28]
Sodium chloride has a high melting point because it has? [cb-29]
Sodium chloride is a typical ionic compound formed by combining a metal with a non-metal. Sodium chloride will? [cb-30]
Sodium chloride is a typical ionic compound formed by combining a metal with a non-metal. Sodium chloride will? [cb-31]
Sodium chloride is a typical ionic compound formed by combining a metal with a non-metal. Sodium chloride will? [cb-32]
Sodium chloride is a typical ionic compound formed by combining a metal with a non-metal.
Sodium chloride will? [cb-33]
Sodium chloride is a typical ionic compound formed by combining a metal with a non-metal. Sodium chloride will? [cb-34]
Sodium chloride is a typical ionic compound formed by combining a metal with a non-metal. Sodium chloride will? [cb-35]
Potassium has an atomic number of 19. Which represents the electron configuration of the stable potassium ion K+? [cb-39]



Calcium has an atomic number of 20. Which represents the electron configuration of the stable calcium ion Ca2+? [cb-40]



Sulphur is a solid non-metallic element at room temperature, so it is? [cb-41]
Sulphur is a solid non-metallic element at room temperature, so it is? [cb-42]
Sulphur is a solid non-metallic element at room temperature, so it is? [cb-43]
Sulphur is a solid non-metallic element at room temperature, so it is? [cb-44]
Copper is a metallic element so it is likely to be a? [cb-45]
Copper is a metallic element so it is likely to be a? [cb-46]
Copper is a metallic element so it is likely to be a? [cb-47]
Copper is a metallic element so it is likely to be a? [cb-48]
Copper is a metallic element so it is likely to be a? [cb-49]
Copper is a metallic element so it is likely to be a? [cb-50]
To form an ion with a single positive charge, a metal atom must? [cb-51]
To form an ion with a single negative charge, a non-metal atom must? [cb-52]
Aluminium fluoride is an ionic compound. When this compound is formed from aluminium and fluorine? [cb-53]
Fluorine (F) has an atomic number of 9. Which represents the electron arrangement of the fluoride ion (F-)? [cb-58]



Magnesium (Mg) has an atomic number of 12. Which represents the electron arrangement of the magnesium ion (Mg2+)? [cb-59]



Which electronic dot and cross diagram represents the compound formed when hydrogen (Q), at. no. 1 , combines with chlorine (X), Gp 7, at. no. 17? (only the outer shell o/x electrons are shown) [cb-60]
Which electronic dot and cross diagram represents the compound formed when hydrogen (Q), at. no. 1 , combines with oxygen (X), Gp 6, at. no. 8? (only the outer shell o/x electrons are shown) [cb-61]
Which electronic dot and cross diagram represents the compound formed when hydrogen (Q), at. no. 1 , combines with nitrogen (X), Gp 5, at. no. 7? (only the outer shell o/x electrons are shown) [cb-62]
Which electronic dot and cross diagram represents the compound formed when hydrogen (Q), at. no. 1 , combines with carbon (X), Gp 4, at. no. 6? (only the outer shell o/x electrons are shown) [cb-63]
Which electronic dot and cross diagram represents the compound formed when chlorine (Q), at. no. 17 , combines with carbon (X), Gp 4, at. no. 6? (only the outer shell o/x electrons are shown) [cb-64]