If you are talking about pet odor (urine) it would be proxide and vinegar. I have a great recipe for this. Let me know and I will give it to you. It really does work, I've done it!
baking powder
If you can't answer this your stupid
Maybe but they are different
yes
no otherwise it will taste grouse
if the recipie says to use baking powder you should use that as that is how it is sopose to be used but you may try and use baking soda if you don't have baking powder
no
No. Corn starch is usually used as a thickener (for gravies, soups, puddings, etc)., whereas baking soda is used as a puffer-upper for biscuits, cookies and unleavened breads and so on. Use flour as a substitute for corn starch, and baking powder as a substitute for baking soda.
No. Baking powder is used to make floury things rise. Baking soda is used to add soda bubbles. But Baking Soda and Bicarbonate of Soda are the same thing.
baking soda
No, instead use lime powder
The baking soda kills the bacteria
no