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1. Discuss briefly system and surrounding using suitable examples, highlighting heat transfers. 14 marks​
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Drug abuse will not lead to physical and psychological dependence. true or false ?
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How might this scientific phenomena be explained? a paper clip floats on water.
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Chemistry, 23.06.2019 03:50
Which best describes the activation energy of a chemical reaction? a. the combined energy of all the reactants b. the amount of energy required for a reaction to occur c. the difference in energy between products and reactants d. the potential energy stored in the bonds of reactants and products
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Chemistry, 23.06.2019 10:30
How is it possible for someone to put an ear to a wall and hear someone in the next room? a.sound waves can travel though solids. b.the waves travel from room to room via air. c.there must be some air in the wall so the sound can travel through it. d.sound waves change to electromagnetic waves and then back again.
Answers: 1
1. Discuss briefly system and surrounding using suitable examples, highlighting heat transfers. 14 m...
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