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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.
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Chemistry, 23.06.2019 02:00
The bone of a dinosaur and the imprint of a leaf are examples of which kind of fossils? a) index b) body c) amber d) trace
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Chemistry, 23.06.2019 03:30
In general metals get as you move from left to right across the periodic table.
Answers: 1
Dung dịch đệm được thành từ acid phtalic và kali hydrophtalate có pH bang 3, T số [acid phtalic/hydr...
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