There were different phenomena when oxygen reacted with different non-metals. These phenomena were the external manifestations of the visual and sensory aspects of the chemical reaction. Sulfur, for example, burns in oxygen to produce a bright blue-purple flame (burning in air to give off a faint pale blue flame), while producing a colorless, pungent gas (sulfur dioxide). The color and smell of the flame were the observable characteristics of the reaction. The red phosphorus burned violently in the oxygen, producing a large amount of white smoke (phosphorous dioxide) that emitted white light (burning in the air to produce a yellow flame). The white smoke (the accumulation of small solid particles) and the white light were also visible reactions. The hydrogen burned in the oxygen and produced a light blue flame. A dry beaker covered the flame and produced a mist. The color of the flame and the mist produced were the external manifestations of the reaction. Charcoal (a black solid) burns violently in oxygen, emitting white light and heat, producing a colorless and odorless gas (carbon dioxide) that can turn clear lime water turbid. The white light, heat, and gas that could turn the clear lime water turbid were all phenomena that could be sensed or detected during the reaction process. These phenomena helped to identify whether a chemical reaction had occurred, the extent of the reaction, and the products of the reaction. Read more exciting novels for free
Iron burned in oxygen (oxygen was gaseous, so the reaction between solid oxygen and iron was assumed to be similar). The reaction was intense combustion, sparks, heat, and the formation of a black solid (Fe3O4). The significance of this phenomenon was to show the external performance of the chemical reaction between iron and oxygen from a macro perspective. Through these phenomena, one could determine whether the reaction occurred and the intensity of the reaction. From a microscopic point of view, these phenomena were a manifestation of the breaking and reorganization of the chemical bond between iron atoms and oxygen molecules (assuming that the reaction of solid oxygen was similar to the molecular and atomic interaction mechanism). For example, the sparks might be related to the small amount of carbon contained in the iron wire, and the black solid was formed because of the reaction to form a specific substance such as Fe3O4. At the same time, understanding these phenomena would help to control and prevent the reaction between iron and oxygen in practical applications, such as steel manufacturing and metal corrosion prevention. For example, to prevent iron from rusting was to control the reaction between iron and oxygen. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The reaction between jumped ether and oxygen could produce acetoxic acid, and the reaction equation was: 2CH CH + O 2 →2CH COH (the reaction conditions were catalyst and heating). <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The combustion phenomenon in oxygen mainly involved chemical reactions and oxygen reactions. When a substance burns in oxygen, substances such as carbon, sulfur, phosphorus, iron, and so on react with oxygen. Many substances often produce one substance, which is in line with the characteristics of the chemical reaction. For example, carbon dioxide is produced by burning carbon in oxygen. The chemical equation is C + O 2 → CO 2. At the same time, the reaction between a substance and oxygen was an oxidization reaction because oxygen was involved in the reaction process. Oxidation reactions were divided into violent ones (such as burning) and slow ones (such as iron rusting). The burning of substances in oxygen was a violent one. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The chemical equation for the reaction between sulfur and oxygen is: S + O2 SO_2\)。 The reaction phenomenon was: burning in the air to produce a light blue flame, releasing heat and producing a gas with a pungent smell; burning in oxygen to produce a bright blue-purple flame, releasing heat and producing a gas with a pungent smell. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The production of oxygen from hydrogen peroxol was an oxido-reduction reaction. In the reaction,[2H_{2}O_{2}],[stacking]{Mn_{2}},[=],[=],[=] 2H_{2}O + O_{2}_{2}_{2 Some of the oxygen atoms were oxided, while the other was reduced. Therefore, the reaction was an oxido-reduction reaction, not a simple oxido-reduction reaction. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The reaction between lithium and oxygen is 4Li + O ^= 2Li ^O. [Phenomenon: The reaction of lithium in oxygen is relatively slow, forming a white solid (lithium dioxide).] <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
In junior high school chemistry, some white precipitations would react with sulfuric acid to produce gas, such as white precipitations such as CaCO2. When the reaction between calcium carbonite and sulfuric acid (HNO2) occurs, the chemical equation is CaCO2 + 2HNO2 = CaCO2 + HNO2 + CO2. The white deposit will gradually dissolve and bubbles will be produced. This is because the reaction produces carbon dioxide (CO2) gas. There was also the white deposit of calcium carbonate-Manganese dioxide, which reacted with sulfuric acid. Manganese carbonate-Manganese dioxide +2HNO-Manganese dioxide = Manganese dioxide (NO-Manganese dioxide)<anno data-annotation-id ="f1000000 - 4000 - 4000 - 4000 - 5000000000"> O </anno>+ O </anno></anno>. The white deposit also dissolved and bubbles emerged, which also produced carbon dioxide gas. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The iron in the iron dioxide already had the highest valency of +3 and could no longer be oxided by oxygen, so the iron dioxide solution did not react with oxygen. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
When there was a small amount of oxygen, the chemical equation for the reaction between hydrogen sulfur and oxygen was: 2H2S + O2 = ignition = 2S +2H2O. The reaction phenomenon was that hydrogen hydrogen would burn in oxygen to produce a light yellow solid (sulfur), and at the same time, water would be produced. When there is an excess of oxygen, the chemical equation for the reaction between hydrogen sulfur and oxygen is: 2H2S +3O2 = ignition = 2SO2 + 2H2O. The reaction phenomenon was that hydrogen hydrogen would burn in oxygen to produce a pungent gas (sulfur dioxide) and water. The chemical equation for the reaction of hydrogen hydrogen, oxygen, and water was not found. Only the equation for the reaction of hydrogen hydrogen and oxygen (divided into two cases of small and excessive oxygen) was found. In these reactions, water was the reaction product rather than the reagent. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The reaction between mercury and oxygen was that the silver-white liquid mercury turned into red mercuric acid powder. Reaction principle: 2 Mercury +O 2 = Heat = 2HgO. Mercury atoms (Mercury) and oxygen molecules (O <2>) were heated. Mercury atoms lost electrons and were oxided, while oxygen molecules gained electrons and were reduced, thus combining to form a compound called mercury dioxide (HgO). <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>