A. because a chemical change is something that's changing
Answer:
It's the first option. A distance between two similar points on a wave of light.
Explanation:
On a wavelength chart, where you measure the rate at which the light travels at its distance from the source. You have two points to compare to.
The majority of an atoms' mass comes from the protons and neutrons that make up its nucleus.
Answer:
wave length=speed/frequency
=365/23
wave length=speed/frequency
=365/35000
Answer:
A compound contains atoms of different elements chemically combined together in a fixed ratio. An element is a pure chemical substance made of same type of atom. ... Elements contain only one type of atom.
Explanation:
