Why can two substances react?
The fundamental reason for the reaction of matter was the movement of matter and the changes in the surrounding environment, including physical and chemical changes. From a chemical point of view, one situation was that a substance would become an ion. The ion would collide in a solution, and the collision with a certain amount of energy would form a combination (effective collision). The S and P orbitals of the outer electrons would form a bond with the S orbitals of other substances, and a chemical change would occur. For example, in some solution reactions, the effective collision of ions would promote the reaction. There were also some cases where the interaction between the metal ions (such as Mn, Mn, etc.) and the metal ions (Mn, Mn, etc.) would result in the formation of a deposit of the metal ions. This was also a manifestation of the reaction. In addition, when there were too many Cl-ions and too many NH3 molecules, it would cause silver ions, copper ions, etc. to form a complex with Cl-ions and NH3 molecules. This was also a reaction. The chemical reactions between substances had mutual transformation and opposition relations. For example, there was a mutual transformation relationship between metals, metal powders, alkali-based and salt-based, non-metals, non-metal powders, acid and salt based on elements, while there was a reaction relationship between metals and non-metals, basic powders and acidic powders, alkali-based and acid, salt-based and salt based on opposites. From a physical point of view, if it snowed in winter, it was the water vapor in the air that cooled down and solidified due to the rotation of the earth. When the temperature rose, the snow melted. This was a change in the state of matter caused by the change in the physical environment. Read more exciting novels for free
Why do substances react faster in solution?
From a microscopic point of view, when a solute was dissolved, the molecules or ions of the solute would spread into the water and be evenly dispersed among the water molecules. This allowed the molecules of the two substances to come into contact with each other more fully during the chemical reaction, so the reaction was faster. From the perspective of contact area, the solution was a uniform and stable mixture. In the solution, the contact area of the two substances was large, and the chemical reaction rate was fast. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Which substances react with alkali-to produce hydrogen?
The reaction between the two would produce hydrogen, and the reaction equation was 2NH4Cl2 + CaCl2 === CaCl2 + 2NH3 ^+2H2O. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
What conditions can two substances meet to react?
Different types of reactions required different conditions: 1. ** Metathesis reaction **: - In the reaction between acid and base, at least one of the reagents must be dissolved in water; when acid and salt react, acid must be dissolved in water; when salt and base react, salt and salt react, both reagents must be dissolved in water. - For the product, there was either water formation, or settling formation, or gas formation. However, the two types of salt in the middle and junior stage of the reaction were both dissolved, and at least one of the two types of salt obtained from the reaction was difficult to dissolve.(The metathesis reaction of salt and salt); the reagents must be generally dissolved, and at least one of the products must be a gas or a precipice (only the reaction of an amine with an alkalium can produce a gas, and the metathesis reaction of salt and alkalium); when acid + salt → new acid + new salt, the acid in the reagent must be dissolved, and at least one of the products must be a gas or a precipice or water; when acid + base → salt + water, at least one of the reagents must be dissolved. 2. ** organic reaction **: - ** Reaction **: After the addition reaction, the heavy bond will be opened, and the atoms at both ends of the original heavy bond will be connected to a new group. - ** Elimination reaction **: Under appropriate conditions, an organic compound will remove a small molecular (such as water, hydrogen Halide, etc.) from a single molecular to form an saturated (double bond or triple bond) compound. - ** Substitution reaction **: A reaction in which an organic compound is attacked by a certain reagent, causing a radical (or atom) in the molecules to be replaced by this reagent. - ** Polyaddition reaction **: The reaction between the molecules produces a high molecular compound. - Condensation reaction: A reaction in which two or more organic molecules interact to form a large molecular chain by a single bond, while losing water or other relatively simple organic or organic molecules. 3. ** Inorganic reaction **: - ** decomposition reaction **: A reaction in which a compound is decomposed into two or more simple substances or compounds under specific conditions. - ** Combination reaction **: A reaction in which two or more substances form a new substance. - ** Substitution reaction **: A reaction between a simple substance and a compound to form another simple substance and another compound. 4. ** Oxidation-reduction reaction **: A chemical reaction in which the valency of an element changes before and after the reaction. 5. ** Ion reaction **: A chemical reaction involving ions. 6. ** Other reaction types **: - For some special organic reactions, for example, the conditions for the chloridizing reaction of alkyls were Cl2/light or vl h; the reaction conditions for the replacement of hydrogen atoms on the aromatic ring of aromatic and its homolog were X2/FeX3; the nitration reaction conditions on the aromatic ring were concentrated HNO3/concentrated H2SO4; the addition reaction conditions for carbon-carbon double bond, carbon-carbon triple bond, aromatic ring, aldo group, and carbonyls were H2/catalyst, A; the addition reaction conditions for alkene were H2O/catalyst; Complete C-C double bond cleavage reaction of alkene and cycloalkene (forming a carbolic acid or a keto, with no hydrogen atom on the double-bond carbon atom), a homolog of the aromatic the side chain is oxided The reaction conditions for the side chain alkyls to be oxided to-COOx, the primary alcohol to be oxided to be oxided to The conditions for the reaction of the acidic decomposition of oil and starch (sugar) were H2O/H+, and the conditions for the reaction of the acidic decomposition of oil and starch (sugar) were H2O/H+, and the conditions for the reaction of the acidic decomposition of oil and starch (sugar) were H2O/H +, and the conditions for the reaction of the acidic decomposition of oil and starch (sugar) were H2O/H +, and the conditions for the reaction of the reaction of the acidic decomposition of oil and starch (sugar) were H2O/H +, and the conditions for the reaction of the reaction of the acidic decomposition of alcohol and ester were H2O solution, and the conditions for the reaction of the acidic decomposition of alcohol and ester were H2O solution, and the conditions for the reaction of the acidic decomposition of alcohol and ester were H2O solution, and the conditions for the reaction of the acidic decomposition of alcohol and ester were H2O solution, and the conditions for the reaction of the acidic decomposition of alcohol and ester were O2/Cuor O2/Ag. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
How to determine whether two substances can react
To determine whether two substances could react, the following factors needed to be considered: 1. Distinguish between chemical changes and physical changes: chemical changes often produce light, heat, color changes, gas production, and other phenomena. The essence is the formation of new substances (from a macro perspective) or new molecules (from a micro perspective). Physical changes are the opposite, such as glass shattering, material melting, vaporizing, etc. 2. ** Considering material properties **: - ** Reactant Nature **: The closer the nature of the reagent, the higher the possibility of the reaction. - ** Oxidability and Reductibility **: If it is an oxido-reduction reaction, a reaction may occur when one substance has a strong oxidisation and the other has a strong reduction. 3. ** Pay attention to reaction conditions **: - ** Temperatures **: Generally, raising the temperature can increase the kinetic energy of the reagent particles, increasing the probability of collision and thus promoting the reaction. - ** Concentration **: The higher the concentration of the reagent, the higher the probability of collision and the easier the reaction to occur. - ** catalyst **: Although the catalyst does not participate in the reaction, it can reduce the activation energy of the reaction and accelerate the reaction. 4. ** Judgment of reaction type **: - ** Metathesis reaction **: See if there are any hard-to-dissolve substances, hard-to-ionise substances, and volatile substances. - ** Other reactions **: You can determine whether a reaction has occurred by detecting the changes in temperature, color, gas volume, and other physical and chemical properties before and after the reaction. At the same time, for the ion reaction, if it was an oxido-reduction reaction, it could be judged according to the periodic table of the elements. The reduction of the elements in the same period from left to right was from strong to weak, and the oxidization from weak to strong. It could also be judged according to the reaction conditions. Different oxidisers (or reducing agents) reacted with the same reducing agent (or oxidiser). The easier the reaction was, the stronger the oxidiser (or reducing agent) of the corresponding oxidiser (or reducing agent). <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
What kind of substances can sulfur dioxide react with?
Sulfur dioxide is an acidic oxide-like substance that can react with the following types of substances: 1. ** Reaction with water **: Sulfur dioxide and water react to form sulfurous acid, but sulfurous acid is unstable and will decompose into sulfur dioxide and water. 2. ** Reaction with Alkaline Material **: - ** Reacts with Alkali **: As an acidic oxygen compound, it can react with alkalites to form salt and water. - ** Reacts with an alkali-based oxygen compound **: For example, it can react with calcium dioxide to form a salt. 3. ** Oxidizing and Reductive **: It can carry out an oxido-reduction reaction with reducing or oxidizing substances in a chemical reaction. 4. ** Reaction with some colored substances **: Reacts with some colored substances (such as fuchsin) to form an unstable colorless substance. It can be restored to its original color by heating or long-term storage, reflecting its whiteness. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
A class of substances that can react with acid to produce gas
There were several types of substances that could react with acid to produce gas: 1. Metal activity ranked before H. This type of metal would undergo a displacement reaction with acid to release gases, such as Na, MG, AI, and Fe. 2. For example, CaCOcan react with acid to form CO2, and NaHCOcan also react with acid to form carbon dioxide. 3. Sulfites and bithites react with strong acid to form sulfur dioxide gas. For example, when BaSO2 react with acid, it will form SO2. 4. Metal Sulfides and Sulfur Hydrides react with strong acid to form hydrogen Sulfates, such as Sulfur Sulfides, which react with acid to form H ^S (generally believed to require concentrated sulfuric acid). 5. The corresponding salt of a weak acid would react with a strong acid to form an acidic gas, and react with a strong base to form an aromatic gas. For example, the reaction of an aromatic acid with an acid would form carbon dioxide, and the reaction of an aromatic acid with a base would form aromatic gas. 6. Special substances such as Mn <2>, which can produce Cl2 by oxidisation of HQ (requires concentrated HQ); F <2> can also produce Cl2 by oxidisation of HQ. 7. When a bleacher is mixed with an acid (such as vinegar), it will produce Cl2. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
What types of organic substances can the amine group react with?
The amine group was basic and could react with an acid to form a salt. For example, it could react with a sulfuric acid to form an amine salt. When heated, the amine salt would lose water and become an amine. An organic compound containing an amine group can also undergo an animation reaction, such as the animation of a Halide.(Often used as an agglomerating agent, the reaction is carried out at high temperature and high pressure. Copper salt is used as a catalyst for the inactive halo on the aromatic ring, and the halo on the fatty chain and the halo activated by the ortho-or para-nitro group on the aromatic ring do not need a catalyst), and the alcoholization of alcohol or ol (volatile alcohol or ol can be agglomerated with hydrogen in the presence of a catalyst in the gas phase under high temperature and high pressure. The alcohol or ol that is difficult to be agglomerated can be agglomerated with hydrogen in the liquid phase under high temperature and high pressure). In addition, the reduction of the nitrogen compound could produce an organic compound containing an amine group, which could also be seen as a reaction related to the amine group. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Why is helium not easy to react with other substances to release heat?
Helium was an inactive element with a stable atomic structure. Under normal circumstances, it could not react with other elements. This was because the outermost layer of the helium atom was full of electrons, so it was difficult to gain and lose electrons. Therefore, it was difficult to have a chemical reaction with other substances, and it was also difficult to react with other substances to release heat. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
What are the components of the substances that can react with water and calcium dioxide?
It was a substance that was difficult to dissolve in water. In the presence of water and carbon dioxide, the chemical reaction of the calcium carbonite forms calcium hydrogen carbonate. This reaction indicates that the calcium carbonite can react with carbon dioxide and water, and the reaction product is calcium hydrogen carbonate.2 In addition, the reaction between calcium dioxide and hot water was an alkali-base neutralizing reaction, which also indicated that calcium dioxide could react with hot water, but the specific reaction product did not mention the specific composition. In the reaction of calcium carbonate-water, the reaction of carbonate-ion (CO2) with water (H2O) forms bicarbocarbonate-ion (HCO) and oxide-ion (Oh2). Theoretically, a small amount of calcium hydrogen is formed, and the solution is basic. This reaction is the reaction of calcium carbonate-water, and the reaction products are bicarbocarbonate-ion, oxide-ion, and a small amount of calcium hydrogen. It was mentioned in the water culture of Amyris rubra that the main components of water and soda were calcium carbonate and lithium hydrogen, which indicated that calcium carbonate might react with substances containing lithium ions (Mn) to form water and soda, but the specific reaction process and other reagents were not explicitly mentioned. The components of the sewer dredge rod contained calcium dioxide. Although there was no mention of the reaction relationship with other components, it also indicated that calcium dioxide could coexist with grease, sulfur dioxide, and other substances in the product. However, it was uncertain whether there would be a reaction and the composition of the reaction product. In summary, the reaction products of carbon dioxide and water are carbon dioxide and hot water. The reaction products include calcium hydrogen carbonate-containing ions, and a small amount of hydrogen carbonate-containing ions. They may react with substances containing lithium ions to form water alkali-containing substances (including calcium carbonate-containing substances). They can also coexist with fats, laurel sulfuric acid, and other substances, but the reaction relationship is not clear. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
What substances react fast with the release of heat from the reaction of the potassium ether?
The reaction between diluted sulfuric acid and potassium hydrogen was an acidic and acidic neutralizing reaction, and the reaction would release heat. The reaction of potassium with water to form potassium hydrogen was also very fast and very heat releasing. According to the principle of chemical reaction, the neutralizing reaction of strong acid and strong base usually gave off heat quickly. Strong acid such as sulfuric acid would also give off heat quickly when it reacted with lithium dioxide. In addition, the process of the reaction of the alkali-metal with water to form lithium dioxide would also give off heat quickly. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>