Explanation:
The longest wavelength of light with enough energy to break the Cl-Cl bond = 495 nm = 
1) The frequency of the light:


c = speed of light= 


The frequency of the light is
.
2)The energy of a photon of the light:
The energy of the photon is given by : E

h = Planck's constant = 


The energy of a photon of the light is
.
3) The minimum energy of the Cl-Cl bond :
To break single bond of Cl-Cl bond we need energy E= 
1 mole = 
So, in order to break 1 mole of Cl-Cl bond we will need:


The minimum energy of the Cl-Cl bond is 241.83 kJ/mol.
Answer:
1. One atom splits
2. large
3. neutrons
Explanation:
In the process of nuclear fission,1__one atom splits___.Fission only happens to very 2(__large___) atoms.The Fission process usually also produces several free 3(__neutrons___).
Nuclear fission is a radioactive decay process in which heavy and unstable radioactive nucleus decays into lighter ones with the release of energy and free neutrons.
Fission differs from fusion in that in nuclear fusion, two light atoms comes together to form a large one. This process releases a very great amount of energy.
Number 2 is the correct answer
Answer:
in the air and soil
in drinking water
on and inside the human body
Explanation: Hope that helps
Answer:
1. Make people aware about the concept of Reduce, Recycle and Reuse.
2. Reduce the use of pesticides and fertilizers in agricultural activities.
3. Avoid buying packages items as they will lead to garbage and end up in landfill site.
4. Ensure that you do not litter on the ground and do proper disposal of garbage.
5. Buy biodegradable products.
6. Do organic gardening and eat organic food that will be grown without the use of pesticides.
7. Create dumping ground away from residential areas.
I hope it helps u