What are the recipes in the Secret Lab?

Here's how to solve the riddle:

MMX is roman numerals. Take that number, and 'split' it (not divide). You should have two numbers. The chemical symbol for Chlorine gives you two letters that denote the ingredients.

Standing in front of a mirror reverses things.

What element at your disposal best represents Gold? What element is the hardest? What is the atomic number of Calcium?

What element at your disposal best represents powder?

And for the lazy, here's the actual quantities:

* Health: 20 candies, 10 lollipops
* Strength: 10 candies, 20 lollipops
* Regen: 20 Coins, 20 Gobstoppers, and 2 candies and a lollipop added while boiling
* Fire: 10 Coins, 10 Gobstoppers, and 10 dust added while boiling