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Казалось бы, что тут сложного Но вокруг нее развернулись жаркие споры многих участников Каждая сторона приводит свои · 8 2=6 8 ÷ 2=4 3 Поиск решения – 1012 мин Цель Учащиеся под руководством учителя с помощью диалога (побуждающего или подводящего)Наибольшую реакционную способность показала проба № 4 из озера № 2 – содержание смол и масел в ней уменьшилось с 63,3 % до 14,2 %, а количество асфальтенов выросло с 2 8/2(2+2) правильное решение

Oxidation numbers are used to track how many electrons are lost or gained in a chemical reactions Assigning these numbers involves several rules Free atoms (H2) usually have an oxidation number of 0, monoatomic ions (Cl) are usually equal to their charge, and polyatomic ions have several governing principlesTable 1 on the next page shows the specific rules in determining the oxidation numbers of periodic table atoms 1 2 Elements of Redox Reactions In redox reactions, normally one reactant is oxidized and one reactant is reduced at the same time An atom is oxidized if its ON increases while an atom is reduced of its ON decreasesChm131 Classify the components of a periodic table (period, group, metal, metalloid, nonmetal, transition) Know that main group elements in the same group have similar properties, the same number of valence electrons, and the same oxidation number Summarize that reactivity increases as you go down within a group for metals and decreases Oxidation State Trends In...