Is there a universal solution to chemical trim How to match chemical trim

Personally, I think that the pending coefficient method can indeed solve the vast majority of equation balancing, although it is troublesome, but I wrote an equation in my sophomore year of high school, which is an oxidation of acid potassium permanganate or something, if the undetermined coefficient method is calculated and the ion electron method is not the same, and the coefficients of the two types of balancing are not the same, but my personality guarantee is in line with the conservation of mass and charge, and it is precisely because of this equation that I realized that the undetermined coefficient method does not guarantee that the balancing results are consistent with the experiment ( It was also thought that the coefficient to be determined was a panacea), because the products corresponding to the two trimming methods were different; I personally think that the universal method is to write out the reaction of each step according to the reaction mechanism (of course, if it is a primitive reaction, there is only one step), and then eliminate the intermediate products, which is not only in line with the experimental facts, but also must be correct; Moreover, the method of reaction mechanism is more suitable for organic reactions;

I'll go back and think about that reaction.,If you're interested, add me Q.,I thought of telling you.

Yes, but it's super troublesome. But absolutely omnipotent. All substances in the reaction formula are preceded by x, y, z....Wait a minute. Then the system of equations is established according to the conservation of elements, and the balance is solved to be calculated. For example.

xc+yo2=zco

is conserved by c,o to obtain x=z

2y=z so that z=1

x=1y=coefficient is reduced to an integer, i.e., balanced.

The tips for chemical formula balancing are as follows:

1. Observation. In general, the more complex chemical formulas in the chemical equation are observed, and then the stoichiometric numbers before the chemical formulas of the relevant elements are introduced in turn until trimming. This method is suitable for balancing simple chemical equations.

2. Least common multiple method. This method is still used for the balancing of simpler chemical equations, and the main point is to find the element that occurs once in the reaction equation and has a relatively large number of atoms on both sides, and then find the least common multiple of the number of atoms on both sides of the element. Divide the least common multiple by the number of atoms of the element in a chemical formula to obtain the coefficient before the chemical formula, and then adjust the correlation coefficient to complete the trim.

The universal balancing method is actually the method of conservation of elements. The first example: 1PBN6+XCR(mNO4)2---CR2O3+MNO2+PB3O4+NO

According to the conservation of pb: pb3o4 is 1 3 according to n conservation knows: no is:

6 In the same way, mno2 is: 2x cr2o3 is: x 2 and finally according to o conservation:

8x=x 2*3+2x*2+1 3*4+6*1x=44 15 multiplied by 15 at the same time

15pbn6+44cr(mno4)2---22cr2o3+88mno2+5pb3o4+80no↑

The second one is even simpler, just do it yourself as an exercise.

In the case of chemical trimming, the main principle is that the types of elements on both sides of the equal sign are the same, and then the number of atoms of each element is the same, which are the two most basic principles.

Chemical Equation Trim Step:

1.Write out the reactants, the molecular formula of the product.

2.Find elements with varying valences, increasing and decreasing valences.

3.Multiply the coefficient in front of the molecular formula to equal the valence gains and losses.

4.The observation method equalizes the number of atoms with no change in valency.

5.In the product, there is a rising arrow for gaseous substances and a downward arrow for sediments, which are changed to equal signs.