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lianna [129]
3 years ago
7

What is the outermost (highest-energy) shell of an element that contains electrons?

Chemistry
1 answer:
DENIUS [597]3 years ago
6 0
Valence shell it contains the valence electrons e.g. the outermost electro
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Calculate the energy required to heat 566.0mg of graphite from 5.2°C to 23.2°C. Assume the specific heat capacity of graphite un
maw [93]

Answer:

7.23 J

Explanation:

Step 1: Given data

  • Mass of graphite (m): 566.0 mg
  • Initial temperature: 5.2 °C
  • Final temperature: 23.2 °C
  • Specific heat capacity of graphite (c): 0.710J·g⁻¹K⁻¹

Step 2: Calculate the energy required (Q)

We will use the following expression.

Q = c × m × ΔT

Q = 0.710J·g⁻¹K⁻¹ × 0.5660 g × (23.2°C-5.2°C)

Q = 7.23 J

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Which element is capable of forming long chains by forming single, double, or triple bonds with itself?
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5 0
3 years ago
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Which of these is a element: Salad, Sugar, Water, or Potassium
vovikov84 [41]

Potassium is a chemical element

Symbol: K

Atomic number: 19

Atomic mass: 39.0983 u ± 0.0001 u

Electron configuration: [Ar] 4s1

Melting point: 146.3°F (63.5°C)

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Answer:

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Explanation:

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