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sergey [27]
3 years ago
14

How many single covalent bonds must a silicon atom form to have a complete octet in its valence shell? how many single covalent

bonds must a silicon atom form to have a complete octet in its valence shell? 0 3 1 2 4?
Chemistry
1 answer:
omeli [17]3 years ago
8 0
Silicon must have 4 single covalent bond, every single bond has 2 electrons (one pair), so 4·2=8 electrons (octet).
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Answer:

Here's what I find.

Explanation:

An indicator is usually is a weak acid in which the acid and base forms have different colours. Most indicators change colour over a narrow pH range.

(a) Litmus

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However, the range is which it changes colour includes pH 7 (neutral), so it is good for distinguishing between acids and bases.

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Phenolphthalein  is colourless in acid (< pH 8.3) and red in base (> pH 10).

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