As per as the Multiplication rules of the significant figures, whenever any numbers in the decimals forms are multiplied or divided then result in mentioned in such a way so that the significant figures after the decimal will be same as that in the given least condition.
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102900/12 = 8575
170 × 1.27 = 215.9
∴ (102,900 ÷ 12) + (170 × 1.27) = 8575 + 215.9
= 8790.9
Now, As per as Above rules, answer in correct significant figures will be = 8791.
Answer: Bonding always involve a pair of electrons and atoms and are shared between two non metals.
2. answer is C.<span> Elements have the same physical and chemical properties in any period </span>
The answer is A.
A pure substance is pure, so it cannot be separated in most cases.
