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Chemistry, 21.06.2019 22:30
Embryos of different species look very similar, which shows that the organisms share a ancestor.
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Chemistry, 22.06.2019 00:30
What does x represent in the formula for the compound xcl4?
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Chemistry, 22.06.2019 07:00
What effect does a decrease in temperature have on the overall rate of a chemical reaction? a decrease in temperature decreases . the reaction rate will
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Chemistry, 22.06.2019 07:20
The diagrams show objects’ gravitational pull toward each other. which statement describes the relationship between diagram x and y? gravity attracts only larger objects toward one another. gravity attracts larger objects only if they are close to one another. if the masses of the objects increase, then the force between them also increases. if distance between the objects increases, then the amount of force also increases.
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nhận xét về số lớp electron của các nguyên tố trong cùng một chu kì với số thứ tự của chu kì( chu kì...
Mathematics, 17.06.2020 19:57
Mathematics, 17.06.2020 19:57
Mathematics, 17.06.2020 19:57
Mathematics, 17.06.2020 19:57
Mathematics, 17.06.2020 19:57
Chemistry, 17.06.2020 19:57