The first reaction from the scale Cl2 + BaF2 is <span>decomposition, remember! that H20 should be broken down.
The third one is </span><span> metal ion substitution
The last one is decomposition again.
</span><span>The second one is </span>H2 + Cl2 has been combined in order to synthesize <span> 2HCl, so that's the answer.</span>
Answer:
The atoms have been rearranged. To put it another way, it created a new substance.
Energy diagram for and endothermic and exothermic reaction