Is gasoline burning a chemical change?GasolineGasoline is a homogeneous liquid consisting of organic compounds obtained from the distillation of petroleum and sometimes, ethanol and other additives. It is used as fuel in vehicles. The United States uses just over 40% of the total gasoline used ...
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,是化学变化。D 压扁易拉罐是物理变化,形状改变。本题考查对化学变化概念的理解,涉及词汇有 chemical change(化学变化)、substance(物质)等。
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...
Is gasoline burning a chemical change? Is sublimation exothermic? Is the burning of paper a chemical change? How does mass change during a chemical reaction? What is an enthalpy change in physical chemistry? If ice melts in a glass of iced tea, and the colour of the liquid changes due to...
___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
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....
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
百度试题 结果1 题目Thiskindofchangeiscalledachemical(化学的)change. 相关知识点: 试题来源: 解析 答案:chemical.形容词chemical作定语修饰名词change.故填:chemical. 我们把这种变化称为化学变化。反馈 收藏
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) ...
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]...