Part D
After about 30 minutes, observe the substances in the test tubes again. Record your observations. Include any evidence
of a chemical reaction.
A Caution! If you plan to leave your substances unattended, be sure they are in a safe location away from young children
and pets.
BIY X¹ X₂ 10pt
Test tube
1
2
3
4
5
6
AVE
Observation