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zloy xaker [14]
2 years ago
10

Si un átomo tiene 18 electrones, cuántos protones tiene?

Chemistry
1 answer:
kari74 [83]2 years ago
6 0

Answer:

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I need help in chemistry 10th grade (sophomore)
Goryan [66]

Answer:

1) 2

2)4

3)5

4)2

5)2

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3 0
3 years ago
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Where do subduction zones occur
allsm [11]
It occurs in the earths lithosphere and sedimentary levels
8 0
3 years ago
Draw the lewis structure for the molecule ch2chch3. how many sigma and pi bonds does it 30) contain
juin [17]
Answer:
            1-Propene has eight sigma bonds and one pi bond.

Explanation:
                   The lewis structure of 1-Propene is shown below. All sigma bonds are highlighted by blue color and the pi bond is highlighted by red color.
                   Carbon having four unpaired electrons in its excited state can form four covalent (sigma bonds) bonds. In given structure the orbitals containing unpaired electron in sp³ hybridized C undergo head to head overlap with three hydrogen atoms having single unpaired electron and orbital of other sp² hybridized carbon in same fashion. So, four sigma bonds are formed by sp³ hybridized carbon atom.
                    The doubly bonded carbon atoms also form sigma bond but two unpaired electrons of these two carbons undergo the formation of pi bond. This pi bond forms when the orbitals overlap along the plane perpendicular to the existing sigma bond resulting in the formation of single pi bond.

8 0
3 years ago
How many moles are in 5.0 x 1025 atoms of iron
Mnenie [13.5K]
1 mole --------------- 6.02 x 10²³ atoms
( moles iron) -------- 5.0 x 10²⁵ atoms

( moles iron ) = 5.0 x 10²⁵ x 1 / 6.02 x 10²³

moles iron = 5.0 x 10²⁵ / 6.02 x 10²³

= 83.05 moles of iron

hope this helps!
8 0
3 years ago
]Which of the following describes the arrangement of particles in plasma?The particles are ionized and move independently of eac
Ugo [173]
The arrangement of the particles in a plasma would be that the particles are ionized and move independently of each other. Plasma is also called an ionized gas where it has free charged particles and are moving regardless of each other.
4 0
3 years ago
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