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Mice21 [21]
3 years ago
5

What is the formula for pentasilicon hexabromide ?

Chemistry
1 answer:
Airida [17]3 years ago
3 0
Pentasilicon hexabromide
Si₅Br₆
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How many hours is 10:00 am to 4:45 pm?
Maslowich
The answer is 5 hours 45 minutes

4 0
3 years ago
Specify which atoms, if any, bear a formal charge in the Lewis structure given and the net charge for the species.
ozzi

Answer :

Formal charge on C:  (-1)

Formal charge on N:  (0)

Net charge: (-1)

Explanation :

First we have to determine the Lewis-dot structure of CN^-.

Lewis-dot structure : It shows the bonding between the atoms of a molecule and it also shows the unpaired electrons present in the molecule.

In the Lewis-dot structure the valance electrons are shown by 'dot'.

The given molecule is, CN^-

As we know that carbon has '4' valence electrons and nitrogen has '5' valence electrons.

Therefore, the total number of valence electrons in CN^- = 4 + 5 + 1= 10

According to Lewis-dot structure, there are 6 number of bonding electrons and 4 number of non-bonding electrons.

Now we have to determine the formal charge for each atom.

Formula for formal charge :

\text{Formal charge}=\text{Valence electrons}-\text{Non-bonding electrons}-\frac{\text{Bonding electrons}}{2}

\text{Formal charge on C}=4-2-\frac{6}{2}=-1

\text{Formal charge on N}=5-2-\frac{6}{2}=0

Net charge = -1 + 0 = -1

4 0
4 years ago
In virginia and some other parts of the world, water has carved vast caverns out of underground limestone deposits. water, howev
shusha [124]
The role of the carbon dioxide in water is that it has the ability to form an acid in which it has the capacity to react  with underground limestones deposits. If it is able to react with the limestone, then it will most likely produce a substance that can be water-soluble.
5 0
3 years ago
How does wind cause weathering?
pantera1 [17]

Hello!! WOW, what a coincidence! I just took this lesson and quiz yesterday, so the answer is still fresh in my mind!

The answer to your question is

D) Blowing sand can wear away a rock's surface and break it into smaller pieces

When wind blows, sure it can pick up dry soil and sand and relocate it, but that doesn't cause the weathering in rocks.

Wind doesn't create new landforms either, that comes from plate tectonic movements and other things.

I just eliminated B and C with the two sentences above, I really don't know how to eliminate A, just common sense i guess.

Please give me brainliest if I was correct and helpful!

Otherwise, please comment and let me know how I can fix my answer!

Thank you, it was fun, have a nice week!

4 0
3 years ago
Read 2 more answers
How are the cells produced through mitosis and meiosis different?
Sholpan [36]

Answer:

In mitosis 2 identical cells are created, but in meiosis 4 sex cells are created.

Explanation:

In mitosis there are 5 stages. These stages are prophase, prometaphase, metaphase, anaphases, and telophase. In meiosis there are also 5 stages, they are the same phases, they just end with II. (Ex. Prophases II)

8 0
3 years ago
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