Answer:
D. 4
Explanation:
Reflection can be defined as a phenomenon which typically involves a change in the direction of a ray of light or waves as it falls on a smooth surface.
Simply stated, reflection occurs when a ray of light or wavefronts bounces off a smooth surface.
Hence, from the diagram provided above, the thin beam of light which illustrates reflection is the fourth because as it hit the surface, it bounced back to the medium from which it was originally propagated with.
Electrons can become excited if it is given extra energy
Exampes:
⁻absorbs a photon
⁻absorbs packet of light
⁻absorbs collides wit nearby atom
⁻absorbs particles.
Answer:
True
Explanation:
Table sugar and table salt are pure substances....When elements chemically combine, they form compounds that have properties that are similar to those of the uncombined elements.
If you mean chlorate it would be Pb(CLO3)3
If you mean chromate it would be
Pb(CrO4)3