L3 ACT科学-- 化学背景.pptx

ACT Science 化学背景;化学背景;基本元素名字;一些词缀;一些词缀;一些词缀;化学背景;物质的组成;The Organization of Matter;29. Which of the following terms best describes the mixture of iodine (I2) and solvent(溶剂) in each of the beakers(烧杯) at the end of the teacher’s demonstration? (71A);29. Which of the following terms best describes the mixture of iodine (I2) and solvent(溶剂) in each of the beakers(烧杯) at the end of the teacher’s demonstration? (71A);原子 atoms;原子 atoms;Vaporization 气化 Condensation 冷凝 Sublimation 升华 Deposition 凝华 Plasma 等离子体 Ionization 离子化 Enthalpy 焓(一种化学能量);34. Which of the following is NOT mentioned in the passage as directly resulting from evaporation or condensation? (68A,2009, Reading, Natural Science) F. Billows of clouds G. “Steaming” oceans H. Blankets of mountain mist J. Sea ice in the polar seas;34. Which of the following is NOT mentioned in the passage as directly resulting from evaporation or condensation? (68A,2009, Reading, Natural Science) F. Billows of clouds G. “Steaming” oceans H. Blankets of mountain mist J. Sea ice in the polar seas;22. Suppose the 42He nucleus emitted during an alpha decay and the e- emitted during a beta decay have the same kinetic energy. Which of the 2 particles is moving at a higher speed? (OG5) F. The 42He nucleus, because it is more massive than the e-. G. The 42He nucleus, because it is less massive than the e-. H. The e-, because it is more massive than the 42He nucleus. J. The e-, because it is less massive than the 42He nucleus.;22. Suppose the 42He nucleus emitted during an alpha decay and the e- emitted during a beta decay have the same kinetic energy. Which of the 2 particles is moving at a higher speed? (OG5) F. The 42He nucleus, because it is more massive than the e-. G. The 42He nucleus, because it is less massive than the e-. H. The e-, because it is more massive than the 42He nucleus. J. The e-, because it is less massive than the 42He nucleus. 1. He的质量是4，e-约为0；2. 动能相同的情况下，质量小的速度快;物质的组成;Table 1;Table 1;物质的组成;物质的组成;Table 1;38. B