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nikklg [1K]
3 years ago
7

You are asked to determine the identity of an unknown liquid and can measure only one physical property. you heat a liquid and r

ecord the liquid turns to vapor at 100 Celsius: this demonstrates which physical property?
Chemistry
1 answer:
Licemer1 [7]3 years ago
5 0
This demonstrates the boiling point. The substance changes from liquid to gas which is the point of vaporization and since it is from heat, it is boiling.
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How is the formation of covalent bonds similar to kids sharing markers? how is it different? if possible, discuss your answer wi
vagabundo [1.1K]
A covalent bond means shared electrons between atoms. This is similar to kids sharing markers because the markers (electrons) are being shared between the kids (atoms). Covalent bonds are different than this metaphor because 1) the electrons are constantly moving about while the kids can steal and keep the markers and 2) the electrons and atoms are physically smaller
5 0
3 years ago
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Which image represents a homogeneous mixture?
Pani-rosa [81]
Imagine A is a Heterogeneous mixture because it a mixture composition that does not stay the same throughout the mixture.
Imagine B is the Homogeneous mixture because it has no changes or irregularities
4 0
2 years ago
aluminum has a specific heat of 0.897 j/g°C. how much heat is needed to raise the temperature of a 79 gram piece of aluminum 28°
frutty [35]

Answer:

Approximately 2000 J.

General Formulas and Concepts:

<u>Thermodynamics</u>

Specific Heat Formula: q = mcΔT

  • <em>q</em> is heat (in J)
  • <em>m</em> is mass (in g)
  • <em>c</em> is specific heat (in J/g °C)
  • ΔT is change in temperature (in °C or K)

Explanation:

<u>Step 1: Define</u>

<em>Identify variables</em>

[Given] <em>c</em> = 0.897 J/g °C

[Given] <em>m</em> = 79 g

[Given] ΔT = 28°C

[Solve] <em>q</em>

<em />

<u>Step 2: Solve for </u><em><u>q</u></em>

  1. Substitute in variables [Specific Heat Formula]:                                             q = (79 g)(0.897 J/g °C)(28 °C)
  2. Multiply [Cancel out units]:                                                                               q = (70.863 J/°C)(28 °C)
  3. Multiply [Cancel out units]:                                                                               q = 1984.16 J

<u>Step 3: Check</u>

<em>Follow sig fig rules and round. We are given 2 sig figs as our lowest.</em>

1984.16 J ≈ 2000 J

6 0
3 years ago
La masse et volume. S'il vous plaît repondre aux questions 2, 3, et 4.​
ella [17]

Answer:

Bonjour! Je me demandais si vous pouviez s’il vous plaît traduire vos questions en anglais afin que je puisse les résoudre. J’utilise un traducteur en ce moment pour vous dire votre réponse dans Français. Je suis désolé si vous ne pouvez pas traduire cela. Bonne journée!

Explanation:

3 0
3 years ago
The reaction converting glycerol to glycerol-3-phosphate (energetically unfavorable) can be coupled with the conversion of ATP t
Brut [27]

Answer:

glycerol-3-phosphate, ADP, H⁺

Explanation:

The reaction of converting glycerol to glycerol-3-phosphate which makes is unfavorable and is coupled with the second reaction which involves conversion of ATP to ADP which is high energetically favorable.

Reaction 1:  Glycerol + HPO₄²⁻ ⇒ Glycerol-3-phosphate + water

Reaction 2:             ATP  + H₂O ⇒ ADP + HPO₄²⁻ + H⁺

The coupled reaction of both the reactions become favorable. Thus, the overall coupled reaction is:

<u>Glycerol + ATP ⇒ Glycerol-3-phosphate + ADP + H⁺</u>

The net products are = glycerol-3-phosphate, ADP, H⁺

8 0
3 years ago
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