Answer:
Reflection/change of direction
Explanation:
When the light of the laser hits the glass of water, it reflects and goes another direction. It's basically just a change of direction. The light is mostly in the glass of water and just some reflecting off of it.
"released from" the atoms
One oxygen molecule is made of O2
Silicon-32's half-life is actually 710 years.
Hydrogen only has 1 electron so not A.
Barium has 2 valence electrons so answers B!