<span>Ultra violet light is the catalyst that converts 7-dehydrocholesterol to provitamin D3. Ultra violet light can be obtained from the sun. The conversion happens when UVB light hits the skin (where 7-dehydrocholesterol naturally resides), gets absorbed, and us metabolized inside of the body.</span>
Answer:
I think the answer is D...
Answer:
1. increase the temperature
2. increase the concentration of reactants
3. increase the surface area of the reactants
4. use a catalyst
5. remove the product as it's formed
Explanation:
for a chemical reaction to take place, the bonds between atoms in the reactants are broken, the atoms rearrange and new bonds between the atoms are formed to make the products.
electrons in the outer shell have the lowest ionization energy. (not even gonna consider the quantum model which does funny things with d-sublevel). Highest ionization energy in descending order is:
Ar = 1520.6
Si = 786.5
Al = 577.44
Na 495.8
Answer:
The salt, LiNO₃ is a neutral, NR salt as it's a salt formed from the reaction of a strong acid and a strong base.In neutralisation reactions, acids and bases react to form salt and water.However, the salt formed may be acidic, basic or neutral. This is dependent on the type of acid and base which form the salt.A strong acid and a strong base react to yield a neutral salt like, LiNO₃.The equilibrium equation when LiNO₃ is dissolved in aqeous solution is;LiNO₃ + H2O ==>. LiOH + HNO₃
Explanation:
