Question

42. Balance the equation below. What is the coefficient for HCI?

Help me please don’t answer then delete I will report u

Answer 1

• Mg + 2HCl ⇒ MgCl₂ + H₂
• Coefficient of HCl = 2

Step-by-step explanation:

Equation (given) :

• Mg + HCl ⇒ MgCl₂ + H₂

Compare the LHS and RHS :

• On the left side, there are only single atoms of H and Cl, whereas there are 2 of each on the right side
• As HCl is a single compound on the left, multiply HCl into 2 to balance the reaction
• Coefficient of HCl = 2

Balanced Equation :

• Mg + 2HCl ⇒ MgCl₂ + H₂