The reaction between bichromate ions and hydrogen dioxide will have different phenomena. Under acidic conditions, the solution will turn from orange-red to green, and the reaction equation is Cr2O72-+3H2O2 + 8H += 2Cr3 ++3O2 → +7H2O; If the solution of chromic acid or bichromate is first neutralized with sulfuric acid, and then hydrogen Peroxideis added, blue Chromic Peroxidewill be formed. The ion equation of the reaction is Cr2O72-+4H2O2 + 2H + = 2CrO5 + 5H2O. This indicated that the reaction conditions were different, and the products of the reaction between the bichromate ion and the hydrogen dioxide were different, resulting in different phenomena. Read more exciting novels for free
Under acidic conditions, the reaction of bichromate ions with hydrogen dioxide will produce blue chromate PeroxideCrO5. The ion equation of the reaction is: Cr2O72- +4H2O2 + 2H + = 2CrO5 + 5H2O, and the solution will change color. Under heating, the solution turned from orange-red to green. The reaction equation was Cr2O72- +3H2O2 + 8H+ = 2Cr3 + +3O2 → +7H2O. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Dichromate has a strong oxidisation, and the-1-valency of the Cl-in-Cl-can be reduced. The two can react, for example, the reaction of K2Cr2O7 with concentrated HQ: K2Cr2O7 + 14HQ (concentrated)= 2KC1 + 2CrCl3 + 6Cl2 ^+7H2O. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
If the concentration of the calcium ions and the conditions of the solution were suitable, it was possible to produce a precipitation of calcium hydrogen. This phenomenon indicated that there was a reaction between the calcium ions and the hydrogen ions, resulting in the formation of a relatively low dissolution of calcium hydrogen. From a chemical equilibrium point of view, the calcium ions and hydrogen ions in the solution would combine to form a solid of calcium trioxides under certain conditions. When it reached the dissolution product of calcium trioxides, it would form a solid. This reaction phenomenon was helpful in understanding chemical concepts such as ion reaction, precipitation-dissolution equilibrium, and so on. It had certain significance in analytical chemistry and water quality detection. For example, in water quality analysis, the content of calcium ions in water could be determined by observing this reaction phenomenon. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
In the lead-acid battery's battery reaction, lead dioxide (PbO <2>) in the negative reaction can react with hydrogen ions (4H <2>) and two electrons (2e <2>) to form lead (Lead) and water (2H <2> O), which means that lead dioxide can react with hydrogen ions. However, there was no information about the reaction between lead and hydrogen ions, so it was impossible to answer whether lead could directly react with hydrogen ions. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
In the reaction system of aluminum and iron chloride-aluminum, the aluminum would actually react with the hydrogen ions produced by the decomposition of iron chloride-aluminum. Ferric acid was then digested to produce hydrogen ions, and aluminum reacted with the hydrogen ions to produce hydrogen gas. Therefore, when aluminum reacted with FeCl3, it would react with hydrogen ions. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Under normal circumstances, the iron ions did not react with the salt. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The oxidoreduction reaction of metal ions included two aspects: reduction reaction and oxidization reaction. In the reduction reaction, the metal ions gain electrons, the number of electrons is reduced, and the metal ions change from a high to a low state, releasing electrons. For example, in some reaction systems, high-priced metal ions would become low-priced metal ions after obtaining electrons. In the oxidization reaction, the metal atom loses its electrons, and the oxidization number increases. It changes from a low-level state to a high-level state while absorbing electrons. The essence of this reaction was the transfer of electrons. In other words, metal atoms lost electrons and became metal ions (the oxidization process), and metal ions gained electrons and became metal atoms (the reduction process). The reaction was usually carried out in an acidic solution, and a reduction indicator was often used to observe the reaction process. In practical applications, the oxidoreduction reaction of metal ions was widely used in the fields of plating, metal corrosion and protection, metal extraction, and so on. Moreover, the metal ions 'oxido-reduction reaction followed the basic laws of electron conservation, charge conservation, and energy conservation. The mobility of a metal was also restricted by the ability of its ions to undergo reduction and oxidization reactions, which affected the properties and uses of the metal in chemical reactions. For example, the more mobile the metal was, the stronger the ability of its atoms to lose electrons, and the weaker the ability of its ions to gain electrons in the reduction reaction. The stronger the ability of its ions to lose electrons in the oxidization reaction, the weaker the ability of metal atoms to generate metal ions. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The chemical equation for the reaction of a halo gas (such as Cl2 <anno data-annotation-id ="cdf3c12 - 4c10 - 4c10 - 4c10 - 9c1111111124"> Cl2 </anno>) with a solution of NaClO </anno> is: The chemical equation for the reaction of Bromine and Iodine at room temperature with a solution of NaOx at room temperature is X <2>+2NaOx = NaX + NaOx + H <2> O <3>(X <3> represents either Bror I <3>). <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Iron ions (tertiary) were highly oxidiser and could react with iron. The hydrogen ions would also undergo a replacement reaction with iron. However, the activity of the hydrogen ions was ranked after that of iron ions, so iron and tertiary iron ions reacted first. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
When the ratio of the reaction between the two was 1:1, the chemical equation was NaHSO4 +Ba(SH)2==H2O+ NaOx + BaSO4. The reaction produced water, the precipitations of soda, and the precipitations of bis sulfuric acid. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>