Question

which of the following chemical equations below correspond to the particulate diagram above?
mg + na₂o → mgo + na
s + h₂o₂→ h₂s + o₂
mg + 2nacl → mgcl₂ + 2na
zn + 2hcl → zncl₂ + h₂

Explanation:

Step1: Analyze reactants in diagram

One - atom element and a di - atomic compound.

Step2: Analyze products in diagram

A compound with two of one atom type and one of another, and a di - atomic gas.

Step3: Match with equations

The equation $Zn + 2HCl
ightarrow ZnCl_2 + H_2$ has a single metal ($Zn$) reacting with a di - atomic acid ($HCl$) to form a metal - chloride compound ($ZnCl_2$) and hydrogen gas ($H_2$), which matches the diagram.

Answer:

$Zn + 2HCl
ightarrow ZnCl_2 + H_2$