Which of the following is a Lewis Acid? a. None are Lewis Acids {eq}b.\ AlCl_3 \\ c. \ CH_4 \\ d. \ NH_3 \\ e. \ CHI_3 {/eq} Lewis Acids: According to the Lewis concept, an acid is defined as a species that is electron-deficient and...
Which of the following is the acid-alkali titration indicator? 翻译结果4复制译文编辑译文朗读译文返回顶部 Which of the following acid-base titration indicator? 翻译结果5复制译文编辑译文朗读译文返回顶部 Following which are the acid and alkali titrate indicator? 相关内容 aVaried [translate] aPart of th...
Which of the following is an application of acid-base neutralization? A. Making explosives B. Purifying water C. Antacid tablets D. Producing plastics 相关知识点: 试题来源: 解析 C。解析:文中提到了抗酸药是酸和碱中和反应的一个应用。反馈 收藏 ...
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Which of the following is a correct safety rule when using strong acids in a chemical experiment? A. Taste the acid to identify it B. Add water to the acid directly C. Pour the acid slowly into water while stirring D. Use a metal spoon to transfer the acid 相关知识点: ...
Which of the following acids is the strongest? A. Citric acid in lemons B. Acetic acid in vinegar C. Hydrochloric acid in stomach D. Carbonic acid in soda 相关知识点: 试题来源: 解析 C。解析:柠檬中的柠檬酸、醋中的醋酸、汽水中的碳酸都是弱酸,而胃中的盐酸是强酸,酸性相对更强,所以C正确...
Which of the following is a weak acid? a. HF b. HCl c. HI d. HBr Acids: Acids are usually defined by its sour taste, or how it changes blue litmus paper to red. On the pH scale, anything below 7.0 is considered acidic. Common definitions of acids include Arrheniu...
a当人们明白我所表达的意思时,我会没有耐心去解释 When the people understood I express when meaning, I can not have the patience to explain[translate] a下列选项哪些是酸碱滴定指示剂? Following option which are the acid and alkali titrate indicator?[translate]...
B.Saliva.C.Carbohydrates.D.Plaque. 相关知识点: 试题来源: 解析 A [解析] 本道听力题考察考生的词汇量。Acid n.酸,硫酸 Saliva n. 唾液,口水 Carbohydrates n.碳水化合物,糖类Plaque n.饰板,牙斑。了解这几个词的意思,就能很快的找到正确答案[A]。因为吃酸的食物对牙齿不好。反馈 收藏 ...
of England.A bog is a very wet area of earth, with a lot of plants growing in it.It can be like a very big and very thick vegetable soup—walk in the wrong place and you can sink and disappear forever.The men were working when one of them saw something sticking out—a human foot...