The chemical substance used to test carbon dioxide is ___. A. limewater B. water C. alcohol D. oil 相关知识点: 试题来源: 解析 A。检验二氧化碳用澄清石灰水,即 limewater。选项 B 是水,选项 C 是酒精,选项 D 是油。所以答案是 limewater。反馈...
The substance that is used to test for the presence of carbon dioxide is ___. A. limewater B. water C. alcohol D. oil 相关知识点: 试题来源: 解析 A。石灰水(limewater)用于检测二氧化碳的存在。水、酒精和油都不能检测二氧化碳。反馈 收藏 ...
段落一: Materials-science researchers are finding that plant fibres can add durability and strength to substances already used in the construction of buildings and in goods that range from toys and furniture to cars and aircraft. A big bonus is that, because plants lock up carbon in their struc...
each carbon atom bonds to four others in a dense network that makes the material the hardest substance known. But in graphite, each carbon atom bonds only to three others in a much looser arrangement of layers, each of which is weakly bonded to neighboring layers. Because individual layers of...
Silica: Named based on its function as carbon black. It is incorrect to use the term silica to refer to a white substance with carbon black properties. Let's talk about the difference between "carbon" and "charcoal". Why is there a distinction between using "carbon" and "charcoal" in ph...
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1.To charge (a beverage, for example) with carbon dioxide gas. 2.To burn to carbon; carbonize. 3.To change into a carbonate. n.(-nāt′, -nĭt) The anionic divalent group CO3, derived from carbonic acid, or a compound containing this group. ...
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