Chemistry, 01.12.2020 07:40 skatingflower
Why does glass have a random arrangement of atoms? a The elements that make up glass does not allow its atoms to be arranged in an highly organized, repeating way b Because it wasn’t made by a volcano c The random atomic arrangement of the liquid glass is locked in with quick cooling d The random atomic arrangement of the liquid glass is locked in with fast cooling
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Sodium sulfate dissolves as follows: na2so4(s) → 2na+(aq) + so42- (aq). how many moles of na2so4 are required to make 1.0 l of solution in which the na concentration is 0.10 m?
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Which property of a rock remains unchanged by mechanical weathering? a. total surface area b. size and shape c. mineral composition d. sharpness
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Athe top of a hill, an athlete on a skateboard has x joules of mechanical energy. how much mechanical energy will she have at the bottom of the hill? ignore the effects of friction.
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Chemistry, 23.06.2019 05:00
Which of the following describes qualitative data? a) recording the temperature of a solid as it is warmed. b) noting the color of a solution as it is heated. c) measuring the volume of an object by water displacement. d) taking the mass of an object using a balance.
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