<h3>Further explanation</h3>
1.Atomic Number (Z) = Mass Number (A) - Number of Neutrons
neutrons = mass number-atomic number
Atomic mass Cl-37= 17
Mass number Cl-37=37
Neutrons = 37-17=20
2. Mass atom X = mass isotope 1 . % + mass isotope 2.%...
![\tt atomic~mass~X=0.0224\times 88+0.7832\times 90+0.1944\times 91=90.1](https://tex.z-dn.net/?f=%5Ctt%20atomic~mass~X%3D0.0224%5Ctimes%2088%2B0.7832%5Ctimes%2090%2B0.1944%5Ctimes%2091%3D90.1)
3. The energy in one photon can be formulated as
![\large{\boxed{\bold{E\:=\:h\:.\:f}}}](https://tex.z-dn.net/?f=%5Clarge%7B%5Cboxed%7B%5Cbold%7BE%5C%3A%3D%5C%3Ah%5C%3A.%5C%3Af%7D%7D%7D)
f = c / λ, so :
![\tt E\approx f\approx \dfrac{1}{\lambda}](https://tex.z-dn.net/?f=%5Ctt%20E%5Capprox%20f%5Capprox%20%5Cdfrac%7B1%7D%7B%5Clambda%7D)
Energy is directly proportional to frequency and inversely proportional to the wavelength
So, as the frequency of photon increases, the energy of photon increases
4. Based on answer number 3 :
A. The wavelength becomes longer, and the energy decreases
<span>A) Frequent earthquakes may occur volcanic activity may be common.</span>
Answer:
Element
magnesium, hydrogen, chlorine, sulfur
Compound
water, iron oxide
Mixture
air, salty water , dias cola.
Explanation:
Element is made up of only one type of atom and are relresented by symbols.
Compound are formed by chemical mixing of atoms of elements and have a chemical formula
Mixture are formed by simple mixing up of substances and mixture don't have chemical formula.
Answer:
See explanation below
Explanation:
I found a picture of this exercise, to show you how to do this problem.
The first picture is the compound, and the second is the mechanism of reaction to do this claisen rearrangement.
Hope this helps
Answer: A mechanical wave is a disturbance in matter that transfers energy through the matter. A mechanical wave starts when matter is disturbed. A source of energy is needed to disturb matter and start a mechanical wave.