Question

chemical reactions
match the chemical equation symbols...
a reversible reaction
heat being applied
separates 2 reactants or 2 products
a catalyst is being used

Explanation:

• In chemical equations, the symbol $

ightleftharpoons$ represents a reversible reaction.

• The symbol $\Delta$ above the arrow indicates heat is being applied.
• The '+' symbol separates 2 reactants or 2 products.
• A symbol like 'Pt' (in this case, written above the arrow) indicates a catalyst is being used.

Answer:

A REVERSIBLE REACTION - $
ightleftharpoons$; HEAT BEING APPLIED - $\Delta$; SEPARATES 2 REACTANTS OR 2 PRODUCTS - '+'; A CATALYST IS BEING USED - 'Pt' (written above the arrow).