Sawing a board in half is a physical change not a chemical change the board doesnt change wood or whatever material it is is still would still be wood
If it were burned it would be a chemical change but its properties stay the same atomically so thats why its not a chemical change.
Answer:
substances with a higher boiling point are returning back to the flask which allows another substances with the specific context temperature (lower boiling point) to boil over and be purified.
Explanation:
The reason it happens because the lower boiling point substance vaporizes and crosses over while the other substance is waiting for its boiling point to reach
Answer:
i cant see the photo but i would love to help
Explanation:
Answer:
C. Yes, because they have a definite composition.
Explanation:
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PLEASE MARK AS BRAINLIEST!!!!!</em></u></h2>
They use frogs because it easy to get and shows what is going on by what they eat what happened to them and other things.
