A __________ bond is a chemical bond between atoms with similar electronegativities; a sharing bond; valence electrons are share
2 answers:
<u>Answer:</u> This is known as non-polar covalent bond.
<u>Explanation:</u>
A covalent bond is formed when sharing of electrons takes place between the atoms forming a bond.
A polar covalent bond is formed when the atoms forming a bond have significant difference in electronegativities. This leads to the formation of poles in the atoms. <u>For Example:</u> HCl
A non-polar covalent bond is formed when the atoms forming a bond dpes not have significant difference in electronegativities or have similar electronegativity. <u>For Example:</u>
Hence, the bond is known as non-polar covalent bond.
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Answer: The concentration of excess in solution is 0.017 M.
Explanation:
1.
moles of
1 mole of give = 1 mole of
Thus 0.019 moles of give = 0.019 mole of
2. moles of
According to stoichiometry:
1 mole of gives = 2 moles of
Thus 0.012 moles of give =
moles of
As 1 mole of neutralize 1 mole of
0.019 mole of will neutralize 0.019 mole of
Thus (0.024-0.019)= 0.005 moles of will be left.
Thus molarity of in solution is 0.017 M.
Answer:
4
Explanation:
Relationship between wavenumber and Rydberg constant (R) is as follows:
Here, Z is atomic number.
R=109677 cm^-1
Wavenumber is related with wavelength as follows:
wavenumber = 1/wavelength
wavelength = 253.4 nm
Z fro Be = 4
Therefore, the principal quantum number corresponding to the given emission is 4.