A volcano is formed when magma (Lava) spews up from deep within the earth. After each eruption the Volcano gets bigger and bigger, so basically after periods of time the volcano will get larger. Lava will rise in cracks in the earth or weak spots in the earths crust. The pressure is relieved thus resulting in a volcanic eruptions it forms the new crust and then eventually builds up in that spot making a volcano. They also form in places called hot spots and various other places.
Elements that exceed the octet rule must have an unoccupied d orbital. I believe.
Answer:
P₅O₁₂
<em>Explanation: </em>
Assume that you have 100 g of the compound.
Then you have 44.7 g P and 55.3 g O.
1. Calculate the <em>moles</em> of each atom
Moles of P = 44.7 × 1/30.97 = 1.443 mol Al
Moles of O = 55.3 × 1/16.00 = 3.456 mol O
2. Calculate the <em>molar ratios</em>.
P: 1.443/1.443 = 1
O: 3.456/1.443 = 2.395
3. Multiply by a number to make the ratio close to an integer
P: 5 × 1 = 5
O: 5 × 2.395 = 11.97
3. Determine the <em>empirical formula
</em>
Round off all numbers to the closest integer.
P: 5
O: 12
The empirical formula is <em>P₅O₁₂</em>.
A bond is formed when electrons are shared between atoms.
<h3>What is the number of unshared pairs?</h3>
A bond is formed when electrons are shared between atoms. This is what we call a shared pair. A lone pair or unshared pair is one that is domiciled on only one of the atoms in the bond.
Let us now look at the molecule shown in image 1;
- The number of unshared pairs in atom a is 0
- The number of unshared pairs in atom b is 2
- The number of unshared pairs in atom c is 0
Let us now look at the molecule shown in image 2;
- The number of unshared pairs in atom a is 1
- The number of unshared pairs in atom b is 2
- The number of unshared pairs in atom c is 3
Learn more about unshared pair:brainly.com/question/22238351
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North Pole ,land is the answer
