3 years ago

Difference between fluorescence and phosphorescence

1 answer:

8 0

Answer: Both fluorescence and phosphorescence are based on the ability of a substance to absorb light and emit light of a longer wavelength and therefore lower energy. The main difference is the time in which it takes to do so. So if it disappears immediately, it's fluorescence. If it lingers, it's phosphorescence.

Explanation:

You might be interested in

Please answer 14 will give brainliest

rosijanka [135]

Answer:

I think it's alkali metals

4 0

3 years ago

Read 2 more answers

What is the osmolarity of a solution made by dissolving 0.50 mole of the strong electrolyte cacl2 in 1.0 l of solution?

valina [46]

Osmolarity=osmole of the solute/litres of the solution
ionic equation for dissociation of CaCl2 is
CaCl2--->Ca2+ +2Cl-
total osmoles for reaction are 1(Ca2+) + 2(Cl-)= 3 osmoles
therefore

0.50 moles of CaCl2 x 3 osmoles/ 1mole of CaCl2 = 1.5osmoles
osmolarity=1.5 /1.0 L=1.5 osmol/l

6 0

3 years ago

Which catalyst is better for the decomposition of Hydrogen Peroxide(H₂O₂) , Potassium Iodide(KI) or Yeast? Explain why.

Yakvenalex [24]

Yeast, because it acts as a catalyst, or a helper, to remove the oxygen from the hydrogen peroxide

3 0

4 years ago

What element has three electrons in its 5d sublevel? Nd Nb Ta U

VladimirAG [237]

The third one Ta. is the answer

8 0

3 years ago