rrq4fw82xq rrq4fw82xq

01-11-2021
Chemistry

contestada

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

Respuesta :

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

What is the product? Zx(x-4)

Find a ⋅ b. a = 7i - 4j, b = 4i + 3j A) <28, -12> B) 16 C) -40 D) <11, -1>

What is the best way to describe eisenhower's foreign policy apex?

Maggs invests $10,250 at a rate of 9%, compounded weekly. To the nearest whole dollar, find the value of the investment after 7 years. $10,375 $11,208 $18,737

Tchaikovsky's Romeo and Juliet contains several themes, including a flowing, gentle theme meant to represent A. the breeze. B. a river. C. love. D. chil

As you read the passage below, highlight all of the biotic factors. Bobby is helping his dad make dinner. They are having steak and boiled potatoes. Bobby’s da

Giving brainiest+points need explanation on this one my answer is 25 is it right?

p(3,5) and q(7,-1) are the end points of a diameter of a circle. what is the length of a radius of the circle

The gray matter of the spinal cord is divided into regions known as

What is the percent by mass of nahco3 in a solution containing 10 g of nahco3 dissolved in 400 ml of h2o?