Do not use a heat - resistant container C. Monitor the temperature constantly D. Leave the E. xperiment unattended 相关知识点: 试题来源: 解析 C。解析:选项A将易燃物放在附近在有热产生的实验中极易引发火灾,非常危险。选项B不使用耐热容器可能会导致容器损坏甚至引发危险。选项C持续监控温度是有热产生...
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Resistance is low in substances, such as metals, that are good conductors, and high in materials, such as plastic and rubber, that are insulators. When an electrical current encounters resistance, part of its energy is converted into heat, and sometimes light, reducing the current. This ...
What is heat in chemistry? What is modern analytical chemistry? What is a polar molecule in physical chemistry? What is ario in organic chemistry? What is general organic chemistry? What is a bond moment in physical chemistry? What is D2O in organic chemistry?
Despitecarefulnessandhighresponsibilityatwork,sheisjustlikeherpeersinnormallife. Eatingsnacksandshoppingareherfavoritefree-timeactivities.Herhighschoolteacherremembers herastoughanddetermined.“Shealwayshadadreamofbecomingascientist,”saidherphysics teacher. Accordingtohercolleague,ZhouChengyuwasverysurprisedwhenshefound...
Theirstayin Elkheadisthesubjectofnothing Daunted:TheUnexpectedEducationofTwoSocietyGirlsinthe West byDorothy Wickenden, whoisamagazineeditorandDorothyWoodruff?s granddaughter. Whydidtheygothen? Well,theywantedto dosomethinguseful.Soon,however,theyrealizedwhattheyhadundertaken. Theymovedinwithalocalfamily,the...
What Is Heat Capacity? SubstanceP/iStock/GettyImages Heat capacityis a term in physics that describes how much heat must be added to a substance to raise its temperature by 1 degree Celsius. This is related to, but distinct from,specific heat, which is the amount of heat needed to raise...
a傻南瓜,那个人是你 The silly pumpkin, that person is you [translate] aPhysics is the study of heat,sound, magnetism,electricity,light,the properties of matter and what it is composed. 物理是热,声音,磁性,电,光,问题物产的研究,并且什么它组成。 [translate] ...
Heat Thoughts Dreams Emotions Photonshave no mass, so they are an example of something in physics that isnotcomprised of matter. They are also not considered "objects" in the traditional sense, as they cannot exist in a stationary state. ...
a调料存放区域 The seasoning deposits the region[translate] aphysics is the study of heat,sound,magnetism,electricity ,light,the properties of matter and what it is composed 物理是热,声音,磁性,电,光,问题物产的研究,并且什么它组成[translate]...