Which best explains why making a pancake from batter is an example of a chemical change? The pancake that forms is a different state of matter.
The change from batter to pancake can be reversed.
A new substance forms when the batter is cooked.
The batter changes shape when it is cooked.

I think it's A

Explanation:

The pancake goes from a liquid to a solid. Chemical changes are not reversible, so it cannot be B. I don't think any new substances are made when the batter is being cooked, so I don't think it's C. Lastly, I'm pretty sure that the batter could be in any shape and still be cooked, so not D. I think it's A, I hope the explanation helped and I hope it's not wrong, and I apologize if it is.

practical process described pest part of scientific investigation.

because practical knowledge is powerful then therotical knowledge.

the maximum mass of nh3 is nh3 in grams