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sergey [27]
2 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]2 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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You are given 100 g of a compound. The compound is composed of 37% hydrogen and 63% oxygen. How many grams oxygen are present in
USPshnik [31]

mass_{oxygen} = \%mass_{oxygen} \times mass_{compound} \\ m = 63\%(100) \\ m = 0.63(100) \\ m = 63 \: grams

<h2>Option d</h2>
7 0
1 year ago
How many grams are in 0.02 moles of beryllium iodide, Bel2?
Flura [38]
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8 0
3 years ago
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barxatty [35]
The frequency stays the same it just gets louder
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3 years ago
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ruslelena [56]

Answer: C

Explanation:

5 0
2 years ago
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Four flasks are prepared, each containing 100mL of aqueous solutions of equal concentration. Which solution has the lowest freez
Jet001 [13]
The freezing point depression is a colligative property which means that it is proportional to the number of particles dissolved.

The number of particles dissolved depends on the dissociation constant of the solutes, when theyt are ionic substances.

If you have equal concentrations of two solutions on of which is of a ionic compound and the other not, then the ionic soluton will contain more particles (ions) and so its freezing point will decrease more (will be lower at end).   

In this way you can compare the freezing points of solutions of KCl, Ch3OH, Ba(OH)2, and CH3COOH, which have the same concentration.

As I explained the solution that produces more ions will exhibit the greates depression of the freezing point, leading to the lowest freezing point.

In this case, Ba(OH)2 will produce 3 iones, while KCl will produce 2, CH3OH will not dissociate into ions, and CH3COOH will have a low dissociation constant.

Answer: Then, you can predict that Ba(OH)2 solution has the lowest freezing point.
6 0
3 years ago
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