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Chemistry, 21.06.2019 16:00
Endeleev saw trends in the physical and chemical properties of elements when he organized them by
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Chemistry, 21.06.2019 18:00
Balance this equation: n2 + h2 > nh3, write the following molar ratios: n2 / n2 / nh3 h2 /
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Chemistry, 22.06.2019 06:00
Oxidation-reduction reactions (often called "redox" for short) are reactions that involve the transfer of electrons from one species to another. oxidation states, or oxidation numbers, allow chemists to keep track of these electron transfers. in general, one element will lose electrons (oxidation), with the result that it will increase in oxidation number, and another element will gain electrons (reduction), thereby decreasing in oxidation number. the species that is oxidized is called the reducing agent or reductant. the species that is reduced is called the oxidizing agent or oxidant. to sum up: oxidation = increase in oxidation state = loss of electrons = reducing agent reduction = decrease in oxidation state = gain of electrons = oxidizing agent part a which element is oxidized in this reaction? fe2o3+3co→2fe+3co2 enter the elemental symbol. view available hint(s) is oxidized part b which element is reduced in this reaction? 2hcl+2kmno4+3h2c2o4→6co2+2mno2+2kcl+4h2o enter the elemental symbol. view available hint(s) is reduced
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Chemistry, 22.06.2019 09:30
1. explain hydrogen peroxide, h 2 o 2 properties and decomposition reaction. 2. describe how each of the following natural cycles plays a part in earth’s climate system. (a) the water cycle (b) the carbon cycle
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English, 22.07.2019 00:10
Mathematics, 22.07.2019 00:10
Mathematics, 22.07.2019 00:10
Mathematics, 22.07.2019 00:10
Mathematics, 22.07.2019 00:10
Mathematics, 22.07.2019 00:10
Chemistry, 22.07.2019 00:10
Mathematics, 22.07.2019 00:10
Mathematics, 22.07.2019 00:10
Mathematics, 22.07.2019 00:10