Chemistry, 27.08.2019 17:30 BackUpAccount
You take an ice cube (mass = 18g) from the freezer (t=-10°c) and place it on the table. later that day, you notice a puddle of water on the table that has reached ambient room temperature (20°c). how much heat must have been absorbed to make this happen?
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Elements that do not have full outer electron shells will donate, share, or take electrons from other atoms. choose the items that have the correct binary ionic formula.
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Astudent is asked to identify and element that is pale yellow brittle solid and does not conduct electricity. at which location in this periodic table would the element most likely be found?
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Chemistry, 22.06.2019 16:50
Which of the following is an indication that a substance has undergone a chemical change? a. no new product has been formed. b. the color of the substance has not changed. c. the original constitute has not changed. d. the molecular structure has changed.
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Chemistry, 22.06.2019 20:00
Carbon-14 undergoes radioactive decay in the reaction above. determine the type of radiation emitted in this reaction and describe what is happening to the nucleus during this reaction.
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You take an ice cube (mass = 18g) from the freezer (t=-10°c) and place it on the table. later that d...
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