Question 8 • SSA Science Intervention: SC.8.P.8.4 - Classifying Substances Based on Physical Properties
In a science demonstration, a teacher mixed zinc (Zn) with hydrogen chloride (HCl) in a flask and quickly attached a balloon over the mouth of the flask. Bubbles formed in the solution and the balloon inflated.
Answer
A
The Zn and HCl both retained their identity.
B
Either Zn or HCl, but not both, retained its identity.