Answer:
=7.89013× 10^47 moles of zinc
Explanation:
1 atom contains 6.023×10^23 moles.
1.31×10^24 atoms of zinc contain6.023×10^24×1.31×10^.24
Humans.
Humans have mass and take up space. :)
Hope this helps!
Answer:
Explanation:
The whole sample is 269
%copper = 127/269 * 100 = 47.2%
%chlorine = 142/269 * 100 = 52.8%
That's all you are asking. Is there more?
Answer:1-methoxy-2,4-dinitrobenzene
Explanation:
The nitro groups are strongly electron withdrawing and promote nucleophilic substitution reactions where one of the original substituents is removed and replaced by a strong nucleophile such as the methoxy group. The mechanism of the reaction is attached below. The electron withdrawing nitrogroup assists the formation of the intermediate in the reaction as shown.
Answer: The shape of an orbital describes a surface that encompasses about 90% of the probability of finding an electron around a nucleus.
Explanation:
An orbital is described as a region in Space around which there is a high probability of finding an electron.
Orbitals possess various shapes. The shape of an orbital describes the region around the nucleus within which an electron in a given energy level may be found with a greater probability.