打火机的主要燃料为丁烷(C 4 H 10 ),有关说法不正确的是( ) A.从结构上看:丁烷由4个碳原子、10个氢原子构成 B.从组成上看:丁烷由碳、氢两种元素组成 C.从变化上看:丁烷完全燃烧生成二氧化碳和水 D.从性质上看:丁烷具有可燃性
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
皮皮学刷刷变学霸
举一反三
【简答题】阅读理解. The table below shows how well each person does the following things: Ski(滑雪) Play tennis Swim Tom √ √ × √ Bill × √ √ √ Kate √ × √ √ Helen √ √ √ × Nick × √ √ √ 1. ______ can ski very well. A. To...
【单选题】The table shows the maximum amount three students would each be willing to pay for a taxi to take them home from a nightclub. Assume they share the taxi fare as shown in the table below. Which shows h...
【单选题】The table shows how much money four consumers would be willing to pay for a new economics textbook. The price of the textbook is $100. How much total consumer surplus would be earned by these consumer...
【单选题】The table below shows the enrollment in various classes at a certain college. Although no student is enrolled in all three classes, 15 are enrolled in both Biology and Physics, 10 are enrolled in both...