物质乌测量 Matter and measuremen 物质 Matter-化学的对象 表征 Characterization->性质 properties 物理和化学性质 Physical and chemical properties 为了描述和表征物质:测量 To describe and characterize matter. chemists make measurements 测量:将待描述的和已知的进行比较 Measurements comparison between something known and something which needs to be described物质与测量(Matter and Measurement) • 物质Matter – 化学的对象 • 表征Characterization --> 性质properties • 物理和化学性质Physical and chemical properties • 为了描述和表征物质：测量To describe and characterize matter, chemists make measurements. • 测量：将待描述的和已知的进行比较Measurements - comparison between something known and something which needs to be described