Heat brings about a chemical change. Physical changes can be undone, but you cannot unbake a cake.
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∙ 14y agoBoth.
New chemical bonds are being formed, and some are being broken. A simple test for if something is a chemical change or not is if the reaction is irreversible, such as baking a cake. Quite a few chemical changes are reversible, however you can almost be certain that a physical change is reversible, such as water <-> ice.
Physical... chemically - it's still chicken - but roasting it in the oven induces a physical change to the bird's flesh.
physical change
it is not a change at all but putting pizza in the oven is a chemical change
Yes
You shouldn't do that, because it is dangerous and unhealthy to eat a cake that is not fully baked through. You should put the cake back in the oven and finish cooking it.
if you mean a cake it is oven baked mixture made for eating
Around 1 hour or 45 minutes for a cake to bake
The recipe for Cake is Flour, Butter, an Egg, and a Fruit baked in the Oven.
Traditional oven cleaner is lye, it chemically turns the baked on fat and oil to soap. This soap then helps clean off the other baked on stuff. I don't know (yet) how the new lye free oven cleaners work.
Without doing the actual laboratory testing, I will suggest that the batter weighs more than the baked cake. The logic is that the liquid batter undergoes chemical reactions releasing moisture and some gases while it bakes. The liquid batter becomes a solid (sort of) cake by loosing some of the liquid content in the heat of the oven. So, batter minus moisture equals cake; you remove less from the oven than you put in the oven. The difference is wafting in the air as aroma of fresh baked cake.