Use the following chemical equation to answer the question: 2 K + MgBr2 ⟶ 2 KBr + Mg

Which elements or compounds are the reactants?
1. K and MgBr2
2. MgBr2 and Mg
3. KBr and Mg
4. K and KBr

Option 1. K and MgBr2

Explanation:

From the question given above, we obtained the following data:

2K + MgBr2 —> 2KBr + Mg

In a chemical reaction, the reactants are located on the left side of the equation while the products are located on the right side.

The reactants are separated from the products by an arrow sign.

Considering the question given above,

Element /compound >>> location

K, MgBr2 >>>>>>>>>>>>> Left

KBr, Mg >>>>>>>>>>>>>> Right

From the illustration above, the reactants (i.e element/compound on the right side) are K and MgBr2

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