rrq4fw82xq rrq4fw82xq
  • 01-11-2021
  • Chemistry
contestada

Cân bằng phương trình Mg+HCl->MgCl2+H2 bằng phương pháp thăng bằng

Respuesta :

AmaraDangTran
AmaraDangTran AmaraDangTran
  • 01-11-2021

quá trình oxi hóa: Mg0 -> Mg2+ + 2e-

quá trình khử: 2H+ + 2e- -> H2 (cần 2 H+ để tạo 1 H2)

----> chỉ cần thêm 2 vào trước HCl (vì H+ là do HCl cung cấp)

----> Mg + 2HCl -> MgCl2 + H2

yay :)

Answer Link

Otras preguntas

Find the least number which added to 3597 will make it a perfect square?
Pens cost 15 pence each. Rulers cost 20 pence each. Write down an expression for the cost of x pens and x rulers.
Can guys please help me, please solve E
Which graph represents a function?
If a system of linear equations has no solution, what does this mean about the two lines?
A grass seed company conducts a study to determine the relationship between the density of seeds planted (in pounds per 500 sq ft) and the quality of the result
Which number line represents the solution set for the inequality 2x – 6 ≥ 6(x – 2) + 8? A number line from negative 1.5 to 1.5 in increments of 0.5. A point is
What is the relationship between the "racial composition" map and the "grades of security" map? How has your neighborhood changed since 1935?
Find the surface area and volume of the following figures.
Assume that we want to construct a confidence interval. Do one of the​ following, as​ appropriate:_________. (a) find the critical value t Subscript alpha divi