In my experience the temperature of the oven makes no difference, but it is how you make them that makes them chewy or not. Most brownie mixes tell you how to mix it to make them cake like or chewy.
Only if you then eat the brownies.
How did temperature affect the cookie dough? Was any matter lost during baking?
yes
Baking cookies, baking cake, baking brownies or baking any in general
If you find that your brownies are getting hard around the edges before they get done in the middle, then you are probably baking your brownies at too high of a temperature. Try lowering your oven about 25 degrees. (If your recipe calls for 375, lower it to 350.) You may have to add a little to the baking time, but the lower temperature will help your brownies to bake more thoroughly and evenly.
It does not!
Yes. Don't add too much. Baking is as much science as making food. Measurements are important.
No, baking powder is what makes cakes rise.
One word baking soda!
It won't be brownies anymore if you do that. > Baking soda is not a substitute for eggs in any recipe. They are completely different things with different functions in baking.
baking
Brownies served on Delta Airlines are from Dancing Deer Baking Co.