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Which of these are minerals? select all that apply a) mica b) quartz c) steam d) copper
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Physics, 22.06.2019 08:00
5g of ammonium nitrate was dissolved in 60g of water in an insulated container. the temperature at the start of the reaction was 23.0°c and at the end it was 19.0°c. calculate the energy absorbed by the reaction.
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Physics, 22.06.2019 14:00
Select for each of the following statements whether it is correct or incorrect. (a) in an isothermal expansion of an ideal gas. (b) the temperature remains constant. (b) the pressure remains constant. (c) there is work done by the gas. (d) there is heat added to the gas. (e) the change in internal energy equals zero.
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Physics, 22.06.2019 14:30
70 give a real life example showing how sensory neurons work with the motor neurons
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Physics, 22.06.2019 21:30
Which sections of the heating curve illustrate this process?
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Which of these are minerals? select all that apply a) mica b) quartz c) steam d) copper...
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