what is the balanced equation when copper metal is placed in a solution when platnium ii chloride is placed. what is the equation

Explanation:

In this case, we can start with the formula of Platinum (II) Chloride. The cation is the atom at the left of the name (in this case ) and the anion is the atom at the right of the name (in this case ). With this in mind, the formula would be .

Now, if we used metallic copper we have to put in the reaction only the copper atom symbol . So, we have as reagents:

The question now is: What would be the products? To answer this, we have to remember "single displacement reactions". With a general reaction:

With this in mind, the reaction would be:

I hope it helps!