experimentpredicted observation
(choose one)A student sees tiny bubbles clinging to the inside of an unopened plastic bottle full of carbonated soft drink. The student opens the bottle, and hears a loud hiss as gas under pressure escapes from the bottle.
The bubbles will shrink, and some may vanish.
The bubbles will grow, and more may appear.
The bubbles won't change.
I need more information to predict what will happen to the bubbles.Rock candy is formed when excess sugar is dissolved in hot water followed by crystallization. A student wants to make two batches of rock candy. He finds an unopened box of "cane sugar" in the pantry. He starts preparing batch A by dissolving sugar in
500mL
of hot water (
70°C
). He keeps adding sugar until no more sugar dissolves in the hot water. He cools the solution to room temperature. He prepares batch B by dissolving sugar in
500mL
of water at room temperature until no more sugar is dissolved. He lets the solution sit at room temperature.
It is likely that more rock candy will be formed in batch A.
It is likely that less rock candy will be formed in batch A.
It is likely that no rock candy will be formed in either batch.
I need more information to predict which batch is more likely to form rock candy.