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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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Which of these statements best describes how an increase in the amount of Sun’s heat reflected by the Earth’s surface and atmosp
Korolek [52]

If the Suns heat is being reflected, then it is making the Earth cooler.

7 0
3 years ago
A certain shade of blue has a frequency of 7.08×1014 Hz. What is the energy of exactly one photon of this light? Planck's consta
Anvisha [2.4K]

Answer:

We have the final answer as

4.69 \times  {10}^{ - 19}  \:  \:  J

Explanation:

To find the energy of a photon of this light we use the formula

<h3>E = hf</h3>

where

E is the energy

f is the frequency

h is the Planck's constant which is

6.626 × 10-³⁴ Js

From the question

f = 7.08×10¹⁴ Hz

We have

E = 7.08×10¹⁴ × 6.626 × 10-³⁴

We have the final answer as

4.69 \times  {10}^{ - 19}  \:  \:  J

Hope this helps you

8 0
3 years ago
What's the momentum of a 3.5-kg boulder rolling downhill at 5 m/s? A. 17.5 km·m/s B. 70 kg·m/s C. 8.5 kg·m/s D. 14.3 kg·m/s
swat32

Hey There!:


p = m * V


p = 3.5 * 5


p = 17.5 Km.m/s


Answer A


hope this helps!

7 0
3 years ago
Read 2 more answers
Will Mark Brainliest <br>Aswer for<br>box 1 and box 2<br>On top of the oval says <br>A-U-G-G-C-A
DerKrebs [107]
<span>A-U-G - G-C-A
Met     -    Ala
  
If AUG is going to be in the beginning of the chain, </span>A-U-G, also will mean a start codon. For eukaryotes, codon for Met means start of the amino acid chain.
5 0
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How could you predict the sinking/floating behavior of a spherical object?
antiseptic1488 [7]
You can predict it by measuring the weight of the spherical object and measuring the liquid (mL) and subtracting finding the volume
8 0
3 years ago
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