PHASE-CHANGE PROCESSES OF PURE SUBSTANCES Compressed liquid (subcooled liquid): A substance that it is not about to vaporize Saturated liquid: A liquid that is about to vaporize Saturated vapor: A vapor that is about to condense. Saturated liquid–vapor mixture: The state at which the liquid a...
A. the other substances B. other substances C. the other substance D. others substance 相关知识点: 试题来源: 解析 B substance作“物质”讲时是可数名词。句意:一种物质如果没有和其他的物质混合,它就是一种纯的物质。根据语境可知,这里的“物质”应该是泛指而不是特指。所以,A、C两个选项都不对。
5. Substance A is a solid that has a fixed melting point. Substance B is a liquid that produces two spots when chromatography is performed. Substance C contains a mixture of Substance A and B with a fixed boiling point. Substance D has a range of boiling points between 29C and 31 C....
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Answer to: Fill in the blank. A base is a substance that ___ in measurable amounts. By signing up, you'll get thousands of...
A substance is pure if it is unmixed with ___. A. the other substances B. other substances C. the other substance D. others substance 相关知识点: 试题来源: 解析 B substance作“物质”讲时是可数名词。句意:一种物质假如没有和其他的物质混合,它确实是一种纯的物质。依照语境可知,那个地点的...
10 Fig. 10.1 shows how the temperature of a pure substance varied as heat was supplied to it at a constant rate. At point A, the substance was a solid.temperature/ C DB CA time / s Fig. 10.1(a)Identify the state(s)of the substance between(i)BC,… [1](ii)CD...[1](b)(i)...
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