Given the balanced equation:
f2 energy → f f
which statement describes what occurs during
this reaction?
(1) energy is absorbed as a bond is formed.
(2) energy is absorbed as a bond is broken.
(3) energy is released as a bond is formed.
(4) energy is released as a bond is broken.

What is the molality of a solution that has 4 mol of kci in 0.800 kg of water

Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.

Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.