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 收藏
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...
Stavy R (1990) Children's conception of changes in the state of matter: from liquid (or solid) to gas. J Res Sci Teach 27:247-266Stavy, R. (1990). Children's conception of changes in the state of matter: from liquid (or solid) to gas. Journal of Research in Science Teaching, ...
A phase change is when matter changes from one state to another through the absorption or release of energy. The phase changes that absorb energy are melting, vaporization, and sublimation while the phase changes that release energy are freezing, condensation, and deposition.Answ...
The change of a substance from a solid directly to a gas is referred to as {Blank}.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 calle...
When a substance changes from a solid to a gas without passing through the liquid state, it is called ___. A. melting B. boiling C. sublimation D. condensation 相关知识点: 试题来源: 解析 C。物质从固态直接变为气态而不经过液态的过程称为升华。选项 A“melting”是熔化;选项 B“boiling...
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...
Matter changes phases when it transforms from one state to another, such as from a liquid into a gas. Explore the definition, types, and examples of phase changes of matter. Understand how to define matter, and recognize that matter can experience up to eight phase...
Matter changes phases when it transforms from one state to another, such as from a liquid into a gas. Explore the definition, types, and examples of phase changes of matter. Understand how to define matter, and recognize that matter can experience up to eight phase cha...
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