When writing chemical equations, we use symbols to represent elements and compounds. For example, H₂O represents water ___ CO₂ represents carbon dioxide. A. and B. or C. but D. so 相关知识点: 试题来源: 解析 A。“H₂O 代表水,并且 CO₂ 代表二氧化碳”,表示并列关系用 and。
Notations for Chemical Equations A chemical equation is composed of chemical formulas. It has reactants on the left and products on the right side of an arrow symbol (→). The arrow is usually read out as ‘yields’. In an equation, all chemical formulae on one side are separated by a...
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Chemical Equations If you were to describe a chemical reaction in a sentence, it would be quite long. To express it in a shorter form, we can write it as a word-equation. For example, the reaction between magnesium and oxygen to give magnesium oxide can be represented as follows – Magne...
THE USE OF ALGEBRA IN WRITING CHEMICAL EQUATIONSNo abstract is available for this article.doi:10.1111/j.1949-8594.1915.tb16323.xCurtis, Robert WCollege of the City of New YorkJohn Wiley & Sons, Ltd.School Science & Mathematics
1 Chapter 6 Chemical Reactions Objectives Write balanced chemical equations Identify types of chemical reaction. Section 2: Understanding Chemical Reactions. Word Equations Remember: The 2 parts in a chemical reaction are the reactants (things reacting) and the....
Re: Writing molecular equations and net ionic equations (check) «Reply #1 on:October 10, 2009, 12:44:40 AM » First three are correct. About fourth? Look for solubility of NiSO4 Logged Hemidol Regular Member Posts: 68 Mole Snacks: +2/-2 ...
accordingtotheequations(1),(2),(3),(4),defininginhibitiontypeiscompetitiveone.EIAbstractlengthgenerallynotmorethan150words,or1500letters.TheAmericanPhysicalSocietyStyleManual,nomorethan500words.1BasicCharacteristics2tensesThe3voice4grammaticalrhetoric5atypicalexample6commonlyusedsentencepatternsinChemistry2tensesThe...
equations salt analysis acids, bases, and salts benzene organometallic compounds atomic number and mass number more maths pythagoras theorem prime numbers probability and statistics fractions sets trigonometric functions relations and functions sequence and series multiplication tables determinants and matrices ...
A.Chemical disinfectants. B.Bacteria. C.Fungi. D.Pentachlorophenol. 参考答案: D 您的答案: 未作答 答案解析: 解析:细节题。倒数第二段第二句指出,在旧式空调系统中,用于循环的水储 存在特制的贮液器中,而贮液器的底部就是进入通风系统中的细菌和真菌的滋生地。最后一 句指出,为了达到无菌的目的...