Carcinogenesis
发表于 2025-3-28 18:11:15
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系列
发表于 2025-3-28 22:05:25
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自恋
发表于 2025-3-29 00:15:12
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高度赞扬
发表于 2025-3-29 04:31:08
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商谈
发表于 2025-3-29 09:04:49
The Halogens,oric acid. This is a strong acid (see Section 11.4 and also Example 16.1 and Question 16.1). Hydrogen chloride is manufactured by burning hydrogen in chlorine. H.(g) + Cl.(g)→2HCl(g) Concentrated hydrochloric acid is easily oxidised to chlorine, e.g. by manganese(IV) oxide.
凌辱
发表于 2025-3-29 13:28:13
Moles, Formulae and Equations,lanation of the figures in ., see page 17.) The relative atomic mass is approximately equal to the mass number of the atom. Since it is a ratio, relative atomic mass has no units. Values of relative atomic masses are given on page 24.
stressors
发表于 2025-3-29 17:05:24
Energy Changes in Chemistry,onverted to heat energy and kinetic energy (energy associated with movement) in a car engine. Another important energy conversion is the changing of solar energy (energy from the sun) into chemical energy in photosynthesis (see Section 9.4).
adroit
发表于 2025-3-29 22:21:15
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Systemic
发表于 2025-3-30 03:18:31
Organic Chemistry, living world, e.g. proteins and sugars are organic compounds. There are a very large number of organic compounds since carbon atoms can join together in many different ways to form rings and chains of atoms. These compounds can be divided into families known as ., in which all the members can be re
不安
发表于 2025-3-30 07:46:20
Textbook 1990Latest editionial chemistry you need to get the grade you want. We give you: * Advice on the course, study and exam technique * Knowledge - full notes of what you need to know, with model answers giving explanations on technique * Practice - more GCSE questions to build skills and understanding - with answers * C