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Chemistry, 22.06.2019 08:00
An observation that requires measurement is called quantitative observable or qualitative
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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.
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Chemistry, 22.06.2019 20:30
Water undergoes a large change in density at 0 ∘ c as it freezes to form ice. calculate the percent change in density that occurs when liquid water freezes to ice at 0 ∘ c given that
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Chemistry, 22.06.2019 23:00
Condensation happens when water vapor cools. true or false? ?
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A liquid in the lab has a density of 1.17 g/cm . What is the volume in liters of 3.02kg of the liqui...
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