Why is the melting of ice a physical change? Change: There are three general types of changes in chemistry. Chemical changes occur when multiple substances interact forming new substances. Nuclear changes occur
Which of the following is a chemical change? A. Melting ice B. Breaking a glass C. Burning wood D. Crushing a can 相关知识点: 试题来源: 解析 C。燃烧木材是化学变化。选项 A 冰融化是物理变化;选项 B 打破玻璃是物理变化;选项 D 压扁罐子是物理变化。
Melting of ice is not a chemical reaction but a physical change. Physical changes are those that do not involve changes in the chemical composition...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your...
A. Melting ice B. Breaking a glass C. Rusting of iron D. Folding a piece of paper 相关知识点: 试题来源: 解析 C。本题主要考查化学变化的定义。A 选项冰融化是物理变化,物质的状态改变但没有新物质生成。B 选项打破玻璃也是物理变化,只是物质的形状改变。C 选项铁生锈是化学变化,有新物质生成。D ...
Cobb EF, Vanderzant C, Hanna MO, Yeh CPS (1976) Effect of ice storage on microbiological and chemical changes in shrimp and melting ice in a model system. J Food Sci 41:29–34Cobb EF, Vanderzant C, Hanna MO, Yeh CPS (1976) Effect of ice stor- age on microbiological and chemical ...
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A. Melting ice B. Breaking a glass C. Rusting of iron D. Folding a paper 相关知识点: 试题来源: 解析 C。本题考查化学反应的定义。A 选项冰融化是物理变化,物质的状态发生改变但没有新物质生成。B 选项打破玻璃也是物理变化,只是物质的形状发生改变。C 选项铁生锈是铁与空气中的氧气和水发生反应生成...
transported from cold areas where ice was formed or existed to warmer areas before freezers were invented. I found that the melting blocks, simple as they seem, can be used to bring out a large number of chemical concepts as well as historical concepts about the melting of ice. Great ...
andAmery ice shelves. Much loss also occurs by bottom melting, but this is partly compensated by a gain in mass by accretion of frozenseawater. The quantitative pattern and the balance between gain and loss are known to be different at different ice shelves, but melting probably predominates. ...
Why is the melting of ice a physical change? Why is Antarctica dry? Why doesn't it rain in Antarctica? Why is the Arctic Ocean warming? Why is ozone depletion greater in Antarctica than in the Arctic? Explain why there is so much snow in Antarctica if it gets so little precipitation. ...