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Alex17521 [72]
3 years ago
8

Are any other answer correct ? ♈❤️

Chemistry
2 answers:
Alex777 [14]3 years ago
7 0
You just need A and the other 2 you selected are correct! Ive already done that question and got it correct
riadik2000 [5.3K]3 years ago
6 0
Those two are correct, your just missing A.
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Which locations are likely to have subatomic particles with the least mass?
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Answer:

2 and 3 because there are the protons and neutrons which have a greater mass than the electrons which are found in the locations 1 and 4. The atom contains a nucleus, which is made from protons and neutrons, and electrons which are found around the nucleus. The mass of the atoms is concentrated in the very tiny space represented by the nucleus. Of course the electrons have a mass too, but is very small compared to the protons and neutrons, and we usually neglect its mass.

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4 years ago
Sam noticed on a climate map that most of the areas with high rainfall and a tropical climate were located in one region. Why ar
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Okay here's the answer ↓

Step-by-step explanation:

Tropical climate is one of the five major climate groups in the Köppen climate classification. Tropical climates are characterized by monthly average temperatures of 18 ℃ (64.4 ℉) or higher year-round and feature hot temperatures. Annual precipitation is often abundant in tropical climates, and shows a seasonal rhythm to varying degrees. There are normally only two seasons in tropical climates, a wet season and a dry season. The annual temperature range in tropical climates is normally very small. Sunlight is intense because they are receiving direct sunlight.

5 0
3 years ago
How does the lens of a light microscope work?
ohaa [14]
D. the reflection of each concave lens makes the object appear larger
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3 years ago
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Is na=na+ reduced or oxidized
Sonbull [250]

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8 0
3 years ago
For some hypothetical metal, the equilibrium number of vacancies at 900c is 2.3 1025 m3. if the density and atomic weight of thi
PSYCHO15rus [73]

Hey there!

The number of vacancies per unit volume =>  ( Nv = 2.3*10²⁵ m⁻³ )

Avogrado's number =>  ( NA = 6.022*10²³ atoms/mol )

Density of material ( p )  in g/m³ :

1 g/cm³ = 1000000 g/m³ so:

7.40  * ( 1000000 ) = 7.40*10⁶ g/m³

Atomic mass = 85.5 g/mol

* Calculate the number of atomic sites per unit volume :

N = NA * p / A

N = ( 6.022*10²³ ) * ( 7.40*10⁶ ) / 85.5

N = 4.45*10³⁰ / 85.5

N = 5.212*10²⁸ atoms/m³

Therefore:

Calculate the fraction of vacancies :

Fv =  Nv / N

Fv = 2.3*10²⁵ / 5.212*10²⁸

FV = 4.441*10⁻⁴



Hope that helps!

5 0
3 years ago
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