What is a chemical change? A. Changing the color of a substance. B. Melting ice. C. Burning wood. D. Crushing a can. 相关知识点: 试题来源: 解析 C。解析:化学变化是产生新物质的变化。A 改变物质颜色可能是物理变化,如颜料混合。B 冰融化是物理变化,状态改变。C 燃烧木材产生新物质,是化学...
百度试题 结果1 题目Which of the following is an example of a chemical change? A. Melting ice B. Breaking a glass C. Burning wood D. Folding a paper 相关知识点: 试题来源: 解析 C。燃烧木材会产生新的物质,属于化学变化。反馈 收藏
A. In the case of B. In case C. In case of D. In event of 相关知识点: 试题来源: 解析 A in case of sth.:假使,如果;in case:以防,万一;in event of:如果,以防;三项都不符合题意。in the cause of意为“在,,过程中”。句意:在化学变化中一种新物质生成了。反馈...
A. a chemical change is always faster. B. a physical change does not change the appearance of a substance. C. a chemical change produces new substances. D. a physical change always requires heat. 相关知识点: 试题来源: 解析 C。解析:化学变化和物理变化的区别是化学变化产生新物质。A 不一定...
A chemical change is different from a physical change because in a chemical change ___. A. the appearance changes B. the composition changes C. the size changes D. the weight changes 相关知识点: 试题来源: 解析 B。化学变化与物理变化不同在于化学变化中物质的组成发生了变化。反馈 ...
___a chemical change a new kind of substance is formedA.In the case ofB.In caseC.In case ofD.In of的答案是什么.用刷刷题APP,拍照搜索答疑.刷刷题(shuashuati.com)是专业的大学职业搜题找答案,刷题练习的工具.一键将文档转化为在线题库手机刷题,以提高学习效率,是
解答一 举报 A句意:在化学变化中,一种新的物质生成了.in the case of:至于…,在……的情况下,就…来说,就……而言,对……而言 It's the kind of story we think of as myth.But in the case of Lincoln,the story is true.我们... 解析看不懂?免费查看同类题视频解析查看解答 更多答案(2) ...
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BROSNAN, T., When is a chemical change not a chemical change? Education in Chem- istry, 36 (2), 56, 1999.Brosnan, T. (1999). When is a chemical change not a chemical change? Education in Chemistry, 36(2), 56.Brosnan, T. When is a chemical change not a chemical change, Educ....
athose set forth below 下面被指出的那些[translate] aspained spained[translate] aThe best title for this passage is 19th-Century Family . 正在翻译,请等待...[translate] aIt is hard to explain what is a chemical change 解释是坚硬的什么是化学变化[translate]...