The transition of an electron from an excited energy state to the ground state always results in B. the emission of electromagnetic radiation.
The electron is going from a high-energy state to one of low energy, so it emits this excess energy as electromagnetic radiation. This <em>may be visib</em>le light, but it <em>may also not be visible</em> to our eyes.
The answer is by using chemical reactions.
Answer:
3 is the coefficient in front of the 
The smallest whole-number coefficient is 2.
Explanation:
The balanced chemical equation is as follows.
3 is the coefficient in front of the
The smallest whole-number coefficient is 2.
Answer:
1.536×10^23
Explanation:
One mole of any compound has N molecules.
Where N is the Avogadro's number
Molecular weight of H2SO4 is
H2 = 2
SO4 = 96
H2SO4 = 2+96
98g/mol
Hence the number of mole of H2SO4 in 25g = 25/98 = 0.2551mol
Number of molecules = 25/98 × 6.022×10^23
= 1.536×10^23 molecules
