Chemistry, 21.10.2020 19:01 cecelia090
Which of the following choices contains the most thermal energy?
a penny that is 20 degrees Celsius ( oC)
an atom of aluminum that is 20 degrees Celsius ( oC)
a 50 milliliter (ml) glass of water at 20 degrees Celsius ( oC)
a 900 milliliter (ml) pitcher of orange juice at 20 degrees Celsius ( oC
Answers: 2
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At a temperature of 393 k, the temperature of a sample of nitrogen is 1.07 atm what will the pressure be at a temperature of 478 k
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Chemistry, 22.06.2019 11:00
The number to the right of an element's symbol (ex. c-12) identifies the of an isotope.
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Chemistry, 22.06.2019 12:00
Which of the following is an example of physical change not a chemical change? a) a log gives off heat and light as it burns. b) a tree stores energy from the sun in its fruit. c) a penny lost in the grass slowly changes color. d) a water pipe freezes and cracks on a cold night.
Answers: 2
Chemistry, 22.06.2019 22:30
Calculate the concentration of all species in a 0.165 m solution of h2co3.
Answers: 1
Which of the following choices contains the most thermal energy?
a penny that is 20 degrees Celsius...
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