Answer:
1. use a ruler to measure how many heights the ball falls down.
2. use notes to record observations.
Answer:
Bears
Explanation:
because starch is heavy and it requires a lot of oxygen in an environment. so having starch in an environment with less oxygen could probably cause fatigue
Answer: The chlorine radical is the most reactive of the among the given halogen molecules and it reacts easily with alkanes. In contrast, the iodine radical is the least reactive of the halogen radicals. In fact, it is so unreactive that it is unable to abstract a hydrogen atom from an alkane.
So, (D) option is correct
Explanation:
Diethyl ether, since 20 is closer to 34.6 it should start boiling faster than the other which is no where near it
This question is really easy lol it would be to conserver energy.