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Dmitrij [34]
3 years ago
6

Atoms that have a high electronegativity...

Chemistry
1 answer:
Nostrana [21]3 years ago
8 0

Helium, bromine, agron, neon,flourine

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2) Give the number of lone pairs around the central atom and the molecular geometry of IF5. A) 0 lone pairs, square pyramidal D)
zysi [14]

Answer: D) 1 lone pair, square pyramidal

Explanation:

Formula used  : \text{Number of electrons}=\frac{1}{2}[V+N-C+A]

where,

V = number of valence electrons present in central atom  = 7

N = number of monovalent atoms bonded to central atom  = 5

C = charge of cation  = 0

A = charge of anion  = 0

Now we have to determine the hybridization of the IF_5  molecule.

\text{Number of electrons}=\frac{1}{2}\times [7+5+0-0]=6

Bond pair electrons = 5

Lone pair electrons = 6-5 = 1

The number of electrons are 6 that means the hybridization will be sp^3d^2 and the electronic geometry of the molecule will be octahedral .

But as there are five atoms around the central iodine atom, the sixth position will be occupied by lone pair of electrons. The repulsion between lone and bond pair of electrons is more and hence the molecular geometry will be square pyramidal.

8 0
3 years ago
Nitrogen and hydrogen react to form ammonia, like this:N2(g)+3H2(g)→2NH3(g)Use this chemical equation to answer the questions be
user100 [1]

Answer:

Option A is correct, there will be no N2 left in the flask

Explanation:

Step 1 : Data given

Number of moles of N2 = 135 mmol = 0.135 mol

Number of moles of H2 = 405 mmol = 0.405 mol

Step 2: The reaction

N2(g)+3H2(g)→2NH3(g)

Step 3:

For 1 mol N2 we need 3 moles H2 to produce 2 moles NH3

Both will completely react. There is no limiting reactant.

There will be produce 0.270 moles NH3.

Option A is correct, there will be no N2 left in the flask

4 0
3 years ago
Which type of electromagnetic waves are dangerous enough to be used to kill cancerous cells?
Sophie [7]

Answer:

Gamma rays

Since they have high penetrating power.

8 0
2 years ago
Please help me out...
liq [111]

Answer:

Explanation:

To convert from grams to atoms, first divide by the molar mass, the multiply by 6.022*10^23.

To convert from moles to mass, multiply by the molar mass of the element.

Hope this helps!

-Emma Victoria

4 0
3 years ago
Giving brain thing.
Over [174]
I think the correct answer is C
7 0
3 years ago
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