Answer:
Be,Mg,Ca,Sr,Ba.Ra[down the group electronegativity is decreasing]
Explanation:
Answer:
B
Explanation:
You take the net force and subtract it from the weight
Answer:
I believe the answer your looking for is out of A or B
Explanation:
Option B because if the heat increases its essentially causing the concentration to increase by replacing the weak bonds with stronger ones
Gravity. The rock is being pushed down and you are counteracting that force with a crowbar pushing it upward.
