#1 compare and contrast chemical change and physical change.
#2 compare and contrast a gas and a plasma.

In a physical reaction, no bonds are broken, and the reaction can be reversed mechanically, while in a physical reaction, two or more substances are combined, and bonds are broken to form completely new substances. Plasma is basically just super-heated gas.

So what you would do is go through and add 3 teaspoons(tsp) 6 times because of the 6 tablespoons(tbsp). which will give you an answer of 18. another way is to multiply 3x6=18.