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Chemistry, 22.06.2019 10:30
Aglow stick contains a glass vial with chemicals. when the glow stick is bent, the vial breaks and the chemicals react to produce a glow. a science student observes that a glow stick kept in the freezer glows for a longer duration than a glow stick kept at room temperature. what conclusion can be drawn based on the observation? be sure to note the outcome and test variables in the conclusion.
Answers: 1
Chemistry, 23.06.2019 00:00
The empirical formula of a compound is ch2o and its mass is 120 amu/molecule, what is its formula?
Answers: 2
Chemistry, 23.06.2019 02:30
When the ionic compound nabr dissolves in water, brβ ions are pulled into solution by the attraction between what two particles? a. the na+ and brβ ions b. the na+ ion and the negative end of a water molecule c. the brβ ion and the positive end of a water molecule d. the brβ ion and the negative end of a water molecule
Answers: 1
Chemistry, 23.06.2019 08:30
Sand is more likely than shale to preserve fossils. true false
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