Question

Pbs+o2=? продолжить химическую реакцию

Answer 1

Окислитель - кислород, восстановитель - сера в степени окисления -2.
Электронный баланс:
О2 + 4е = 2O(-2) |*3 кислород из степени окисления 0 восстанавливается до степени окисления -2
S(-2) - 6e = S(+4) |*2 сера из степени окисления -2 переходит в +4 (восстановитель окисляется)
Первое уравнение баланса умножаем на 3, второе на 2, чтобы уравнять число электронов. Электроны, отданные восстановителем и принятые окислителем - это одни и те же электроны, поэтому, конечно, число их должно быть одинаковым. По смыслу данных уравнений 12 электронов перешло от серы к кислороду в элементарном акте реакции.
2PbS + 3O2 = 2PbO + 2SO2

Answer 2

According to the translation tool, your message means "Answer in detail PBS O2 Continue Chemical Reaction" in English. I assume you are asking about the chemical equation for the reaction of lead (II) sulfide (PbS) and oxygen (O2) to produce lead (II) oxide (PbO) and sulfur dioxide (SO2). This is a type of combustion reaction, where a compound reacts with oxygen to produce oxides. To balance this equation, we need to make sure that the number of atoms of each element is the same on both sides of the equation. We can do this by adjusting the coefficients (the numbers in front of the formulas) of the reactants and products. Here are the steps to balance the equation:

- Write the unbalanced equation: PbS + O2 -> PbO + SO2 - Count the number of atoms of each element on both sides of the equation. On the left side, we have 1 Pb, 1 S, and 2 O. On the right side, we have 1 Pb, 1 S, and 3 O. - To balance the oxygen atoms, we need to multiply O2 by 3/2 on the left side. This gives us 3 O atoms on both sides. However, we cannot have fractions as coefficients, so we need to multiply the whole equation by 2 to get rid of the fraction. This gives us: 2PbS + 3O2 -> 2PbO + 2SO2 - Now, the equation is balanced, as we have 2 Pb, 2 S, and 6 O atoms on both sides of the equation. The final balanced equation is: 2PbS + 3O2 -> 2PbO + 2SO2

You can check the validity of this equation by using an online tool or by watching a video tutorial. You can also learn more about the factors that affect the rate of this reaction, such as temperature, pressure, and catalysts, by using a web search tool . I hope this answer was helpful and informative.