Its hybridization would be sp because Be only has 2 covalent bonds with Cl
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Here is the link to a great video that explains your question nicely, hope this helps.
Explanation:
It <em><u>provides an objective, standardized approach to conducting experiments</u></em> and, in doing so, improves their results. By using a standardized approach in their investigations, scientists can feel confident that they will stick to the facts and limit the influence of personal, preconceived notions.
I hope this helps you out!
