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vfiekz [6]
3 years ago
7

How do you know how many electrons an element will gain or lose in forming an ion?

Chemistry
1 answer:
Alinara [238K]3 years ago
7 0
First the element has to be stable. One chooses the easiest way to make the element stable. for example : Al has 13 electrons and you want to make it stable, you consider the outermost electrons where in AL the are three so it is easier for Al to lose three than to gain five
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Answer:

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2 years ago
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PLEASE HELP & SHOW WORK
Olegator [25]

Answer:

1. 0.178 moles ; 2. 8x10²³ atoms ; 3. 7.22x10²³ molecules ; 4. 89.6 g ; 5. 1.34x10²² atoms ; 6. 1.67x10²⁵ molecules

Explanation:

1. Mass / Molar mass = Mol

5g / 28 g/m = 0.178 moles

2. 1 molecule of N₂ has 2 atoms, it is a dyatomic molecule.

4x10²³  x2 = 8x10²³ atoms

3. 1 mol of anything, has 6.02x10²³ particles

6.02x10²³ molecules . 1.2 mol = 7.22x10²³

4. 1 atom of C weighs 12 amu.

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0.0222 moles → ( 0.0222 . 6.02x10²³) = 1.34x10²²

6. Density of water is 1 g/mL, so 500 mL are contained in 500 g of water

Molar mass H₂O = 18 g/m

500 g / 18 g/m = 27.8 moles

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8 0
3 years ago
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Answer:

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Explanation:

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The unit in kinetic energy is Joules. This is actually a really important part in chemistry and physics.

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