What is the instrument used for weighing substances? A. balance B. thermometer C. pipette D. microscope 相关知识点: 试题来源: 解析 A。选项 A“balance”是天平,用于称量物质;选项 B“thermometer”是温度计;选项 C“pipette”是移液管;选项 D“microscope”是显微镜。
A. Pipette B. Graduated cylinder C. Balance D. Magnifying glass 相关知识点: 试题来源: 解析 A。此题考查实验器材的用途。A 选项“Pipette”是移液器,用于吸取和转移液体;B 选项“Graduated cylinder”是量筒,用于测量液体体积;C 选项“Balance”是天平,用于称量物体质量;D 选项“Magnifying glass”是放大镜...
What instrument is often used for heating substances? A. crucible B. bunsen burner C. pipette D. spatula 相关知识点: 试题来源: 解析 B。bunsen burner 是本生灯,用于加热物质。crucible 是坩埚;pipette 是移液管;spatula 是药匙,它们都不是用于加热的仪器。
A pipette is a chemical dropper used in laboratory experiments to measure and transport fixed volumes of chemicals. The accuracy...
A pipette is a chemical dropper used in laboratory experiments to measure and transport fixed volumes of chemicals. The accuracy...
What is a Pipette Pipettes are 1/10 (one tenth) of a pip. One point equals ten pipettes. Pipettes are also known as glasses. 1 pip = 10 pipettes For example, 200 points = 2000 points. A pip is used to calculate a 4-digit decimal value in currency pairs. ...
What instrument is used to pour liquids carefully? A. pipette B. burette C. beaker D. flask 相关知识点: 试题来源: 解析 B。burette 是滴定管,用于小心地倾倒液体。pipette 是移液管主要用于精确移取液体;beaker 是烧杯;flask 是烧瓶,都不是专门用于小心倾倒液体的。
out. Some pipettes lack a bulb, substituting a piece of cotton. The pipette is inserted into the liquid and a piece of cotton is used to cover the other end. When the cotton is removed, the liquid will spill out, though the cotton can also be used to filter solids out of the liquid...
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 ...
A pip, therefore, relates to movement in the fourth decimal place, while a pipette is used to measure movement in the fifth decimal place. How Are Pips Used? They are a part of a currency pair’s exchange rate market quote. Pips represent the change in the quote and value of a positio...