Pat is most likely to have made the hydrofluoric acid. My first piece of evidence is that (Evidence Card). However, these substances were not found at Pat’s house (Evidence Card ). This could mean that . This evidence supports my claim because a chemical reaction between and could cause the atoms to rearrange to form as one of the products. This is because . My next piece of evidence is that the police found at Pat’s house (Evidence Card ___). This evidence supports my claim because if Pat mixed the and to make hydrofluoric acid, then the other product of this reaction could be . This is because only the and atoms would rearrange to form hydrofluoric acid. The rest of the atoms of the reactants would have to rearrange to form another substance. This evidence suggests that Pat mixed and to make the hydrofluoric I nd help this is doe by today hel.