I wish I could help you, but I cannot see your paper. Please re-upload so I can help you : )
It is approximately 10 ^ -10
Answer:
They have the chance to inhale toxic fumes secreted by the mixture.
Explanation:
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.