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Andrei [34K]
3 years ago
12

Eat at Joe's! Did you know that this neon sign is experiencing a change of state? When a neon sign lights up, like the one you s

ee here, something is happening to the neon atoms inside the tube. How is this colorful sign related to kinetic energy and phase change?
Chemistry
2 answers:
Natali [406]3 years ago
5 0
The answer is D- Electrical energy accelerates the electrons in the gas. The gas ionizes and becomes plasma.:)
Afina-wow [57]3 years ago
4 0

<span>ANSWER:
Electrical energy accelerates the electrons in the neon gas. The gas ionizes and becomes plasma, containing both positive and negative ions.</span>
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Answer:

0.5 centimetres

Explanation:

because 1 mm is 0.1 centimetres

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Definition: This is a net gain or loss of electrons.
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Elecric charge/ Electricity  

Explanation:

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2 years ago
Which of these structures are found in both plant and animal cells
erastova [34]

Answer: B

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3 years ago
What is the molarity of a solution composed of 5.85 g of potassium iodide, KI, dissolved
Troyanec [42]

Answer:

0.282 M

General Formulas and Concepts:

<u>Chemistry - Solutions</u>

  • Reading a Periodic Table
  • Using Dimensional Analysis
  • Molarity = moles of solute / liters of solution

Explanation:

<u>Step 1: Define</u>

5.85 g KI

0.125 L

<u>Step 2: Identify Conversions</u>

Molar Mass of K - 39.10 g/mol

Molar Mass of I - 126.90 g/mol

Molar Mass of KI - 39.10 + 126.90 = 166 g/mol

<u>Step 3: Convert</u>

<u />5.85 \ g \ KI(\frac{1 \ mol \ KI}{166 \ g \ KI} ) = 0.035241 mol KI

<u>Step 4: Find Molarity</u>

M = 0.035241 mol KI / 0.125 L

M = 0.281928

<u>Step 5: Check</u>

<em>We are given 3 sig figs. Follow sig fig rules and round.</em>

0.281928 M ≈ 0.282 M

7 0
3 years ago
Describe the term molarity as it relates to an acid or base.
algol13
It's essentially another word for concentration, of the acid. e.g.  "the molarity of the acid is 3moldm^-3"
8 0
3 years ago
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