What can be used to stir liquids? A. Spoon B. Stirring rod C. Chopsticks D. Pencil 相关知识点: 试题来源: 解析 B。“Spoon”是勺子;“Stirring rod”是搅拌棒;“Chopsticks”是筷子;“Pencil”是铅笔。正确答案是 B,搅拌棒专门用于搅拌液体。涉及词汇有 spoon、stirring rod、chopsticks、pencil,语法...
A. A funnel B. A dropper C. A pipette D. A stirring rod 相关知识点: 试题来源: 解析 C。本题考查实验工具的名词辨析。题目问什么是移液管,只有 C 选项是 pipette 即移液管。A 选项 funnel 是漏斗,B 选项 dropper 是滴管,D 选项 stirring rod 是搅拌棒,都不符合题意。反馈...
What tool is used to stir a solution? A. stirring rod B. spatula C. dropper D. clamp 相关知识点: 试题来源: 解析 A。A 选项 stirring rod 是搅拌棒,用于搅拌溶液;B 选项 spatula 是药匙;C 选项 dropper 是滴管;D 选项 clamp 是夹子。
What instrument is used to stir solutions? A. stirring rod B. spatula C. pipette D. tweezers 相关知识点: 试题来源: 解析 A。stirring rod 是搅拌棒,用于搅拌溶液。spatula 是药匙;pipette 是移液管;tweezers 是镊子,都不是用来搅拌的。反馈 收藏 ...
This instrument is used to collect and store gases. What is it? A. Gas syringe B. Stirring rod C. Balance D. Crucible 相关知识点: 试题来源: 解析 A。A 选项 gas syringe 是气体注射器,用于收集和储存气体;B 选项 stirring rod 是搅拌棒;C 选项 balance 是天平;D 选项 crucible 是坩埚。题目...
This instrument is used for separating solid particles from a liquid. What is it? A. Balance B. Filter paper C. Stirring rod D. Volumetric flask 相关知识点: 试题来源: 解析 B。A 选项 balance 是天平,用于称量;B 选项 filter paper 是滤纸,用于分离固体颗粒和液体;C 选项 stirring rod 是搅拌...
A stirring rod isused for mixing liquids, or solids and liquids. Stir rods are used as part of proper laboratory technique when decanting supernatants because the contact helps to negate the adhesion between the side of the glassware and the supernatant that is responsible for the liquid running...
As nouns the difference between rod and stang is that rod is a straight, round stick, shaft, bar, cane, or staff while stang is...
What is another word forbaiting? Needsynonyms for baiting? Here's a list ofsimilar wordsfrom ourthesaurusthat you can use instead. Contexts▼ Verb To be triggering a passionate feeling or reaction (rare)Persuading someone to undertake or acquire something ...
In a 100 mL round-bottom flask equipped with a stirring rod, dissolve 3-Chloroaniline and triethylamine (3 equivalents) in a 2:1 volume ratio of H2O/THF mixture (45 mL). Stir the resulting reaction mixture at room temperature for 5 minutes, then cool the reaction mixture to 0°C and ...