Use the chemical equation to find the answers. HzCO, H0 + CO,
Identify how many oxygen atoms are in the product
ldentify how many oxygen atoms are in the reactant.

They are like other investigations? say there was a murder u have to do blood test and finger prints which run through a lab. 

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.