When a solid changes directly into a gas, it is called ___. A. evaporation B. condensation C. sublimation D. precipitation 相关知识点: 试题来源: 解析 C。sublimation 是固体直接变为气体的过程;evaporation 是液体变为气体;condensation 是气体变为液体;precipitation 是降水。反馈...
A. Sublimation B. Evaporation C. Condensation D. Distillation 相关知识点: 试题来源: 解析 A。固体直接变为气体的过程称为升华(Sublimation)。“Evaporation”是蒸发,指液体变为气体;“Condensation”是冷凝,气体变为液体;“Distillation”是蒸馏。本题描述的是固体到气体,所以是升华,选 A。反馈...
自然科学-第一季15《物质及其变化》Matter and Its Changes 38:58 自然科学-第二季01《动物如何生长》What Animals Need to Grow 36:22 自然科学-第二季02《生命的东西VS非生物》Living Things vs Nonliving Things 37:23 自然科学-第二季03《动物的环境适应与生存》Adaptations for Survival 42:40 ...
When ice melts, it changes from a solid to a ___. A. liquid B. gas C. plasma D. solid again 相关知识点: 试题来源: 解析 A。冰融化时从固态变为液态。B 选项“gas”是气态;C 选项“plasma”是等离子体;D 选项“solid again”再次变为固态,均不符合冰融化的状态。反馈 收藏 ...
The process when a solid changes directly to gas is called [{Blank}]. State the process by which solids change directly to gases and from gases to solids. What is it called when a gas turns into a solid for a phase change? Describe a situation where a ...
Water can change from a solid to liquid or to a gas . This is why we always have fresh water. Now let us find out it changes. The heat of the sun turns liquid water into gas from the oceans, seas, rivers and lakes. The heat also turns liquid water into gas from the ground, th...
百度试题 结果1 题目20 A gas changes directly to a solid during (2)(1)fusion(3)saponification(2)deposition(4)decomposition 相关知识点: 试题来源: 解析 (2) 反馈 收藏
When a liquid evaporates, it changes into ___. A. a solid B. a gas C. a liquid again D. a different liquid 相关知识点: 试题来源: 解析 B。解析:液体蒸发时会变成气体,这是物态变化的知识,所以选B。A选项变成固体错误;C选项再次变成液体不符合蒸发的定义;D选项变成不同液体错误。反馈 ...
2.1. Temperature: Changes in temperature can cause solids to undergo phase transitions, such as melting, sublimation, or crystallization. 2.2. Pressure: Alterations in pressure can affect the arrangement of molecules in a solid, leading to changes in its physical properties. 2.3. Composition: The ...
百度试题 结果1 题目When water freezes, it changes from a liquid to a _. A. gas B. solid C. plasma D. vapor 相关知识点: 试题来源: 解析 B。本题主要考查物质状态的变化,水结冰是从液态变成固态,solid 表示固态。反馈 收藏