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"Education is the most powerful weapon which you can use to change the world”
– Nelson Mandela

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Online Assignment A- Chapters 3 & 4

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Q • Question 1 0 out of 1.5 points Is the picture of the two water molecules below possible? • Question 2 1.5 out of 1.5 points What is the difference between heat and temperature? • Question 3 0 out of 1.5 points If you have an 8-oz cup of coffee that is 27 °C and a 64-oz container of coffee that is 27 °C; which has a higher amount of heat and why? • Question 4 1.5 out of 1.5 points Using your knowledge about specific heat capacity and water’s structure, why can LA (near the water) be 75° C and Palm Springs (inland) can be 106° C? • Question 5 1.5 out of 1.5 points Why would NaCl (sodium chloride) dissolve in water?

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1.Selected Answer: Yes, because the like charges of the hydrogen atoms would attract each other. 2.Selected Answer: Heat is energy and it involves the movement of atoms in matter. Temperature is a measure of this energy; how fast (hot) or slow (cold). 3.Selected Answer: The 8-oz cup and a 64-oz container are equal in the amount of heat because they have the same temperature. 4.Selected Answer: Water has a high specific heat, which means it takes a great amount of energy to alter the tempertature of water a few degrees. Since LA is closer to the water, the water is absorbing the heat in the atmosphere causing a lower temperature.