Which phrase best describes a covalent bond?
1 answer:
<u>Answer:</u> The correct answer is sharing of electrons.
<u>Explanation:</u>
Covalent bond is defined as the bond which is formed when sharing of electrons takes place between the atoms. This is usually formed between two non-metals.
<u>For Example:</u> Formation of hydrogen chloride molecule
Electronic configuration of hydrogen =
Electronic configuration of chlorine =
Hydrogen and chlorine atoms are need only 1 electron to attain stable electronic configuration. So, they share electron and form covalent bond.
Hence, the correct answer is sharing of electrons.
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Answer:
The method is accurate in the calculation of the
Explanation:
As a first step we have to calculate the <u>average concentration </u>of find it by the method.
Then we have to find the<u> standard deviation:</u>
For the confidence interval we have to use the formula:
μ=Average±
Where:
t=t student constant with 95 % of confidence and 5 data=2.78
μ= ±
upper limit: 0.84
lower limit: 0.75
If we compare the limits of the value obtanied by the method (Figure 1 Red line) with the reference material (Figure 1 blue line) we can see that the values obtained by the method are within the values suggested by the reference material. So, it's method is accurate.
