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valentinak56 [21]
3 years ago
13

Classify each of these soluble solutes as a strong electrolyte, a weak electrolyte, or a nonelectrolyte. drag each item to the a

ppropriate bin.
Physics
2 answers:
horrorfan [7]3 years ago
4 0
Three of these are strong electrolytes: 
- HCl (Hydrochloric acid) 
- HNO3 (Nitric acid) 
- NaOH (Sodium hydroxide) 

Two of these are Weak electrolytes: 
- HF (Hydrogen fluoride) 
- HC2H3O2 (Acetic acid) 

And the other two are Non-electrolytes: 
- C6H12O6 (Glucose) 
- C2H5OH (Ethanol) 
Blababa [14]3 years ago
3 0
  • Strong electrolytes: HCl, NaOH, HNO₃
  • Weak electrolytes: HF, HC₂H₃O₂
  • Nonelectrolytes: C₂H₅OH, C₆H₁₂O₆
<h3>Further explanation </h3>
  • Electrolyte solutions are substances that produce ions when dissolved in water and can conduct electricity.
  • A strong electrolyte is a solution that has the strongest electrical conductivity because the solute is completely ionized when dissolved in water.
  • A weak electrolyte is a solution with low electrical conductivity and partially ionized.
  • Nonelectrolytes are solutions that cannot conduct electric current because the solute cannot produce ions.

One of the most significant properties of water is its ability to dissolve a wide variety of substances. Solutions in which water is properly the dissolving medium are called aqueous solutions. For electrolytes, water comes by the most primary solvent.  

  • HCl = hydrochloric acid, a strong acid.
  • HNO₃ = nitric acid, a strong acid .
  • NaOH = sodium hydroxide, a strong base .
  • HF = hydrofluoric acid, a weak acid .
  • HC₂H₃O₂ or CH₃COOH = acetic acid, a weak acid .
  • C₂H₅OH = ethanol, a nonelectrolyte .
  • C₆H₁₂O₆ = glucose, a nonelectrolyte .

<u>Notes: </u>

  • Some acids ionize completely in water, some partially. Thus acids are not all of equal strength in terms of the production of H⁺ ions in solution. If an acid ionizes completely, it is strong acid. If we pass hydrogen chloride gas through water, almost all the molecules ionize to give H⁺ and Cl⁻ ions. Hence, HCl is a strong acid.  
  • If an acid ionizes partially, on the other hand, it is a weak acid. In the ionization of weak acids, some of the ions recombine and remain as molecules. HF is a weak acid. If we pass hydrogen fluoride gas through water, some of it will ionize to give H⁺ and F⁻. Most of the dissolved hydrogen fluoride will remain as HF molecules in water.
  • Bases that completely ionize in water are called strong bases. The bases of alkali metals and some alkaline earth metals are strong, e.g., NaOH, KOH, and Ba(OH)₂. They conduct electricity well in an aqueous solution.
  • Bases that dissociate in water slightly are weak bases, e.g., Mg(OH)₂ and NH₃. Water solutions of weak bases are poor conductors of electricity.
<h3>Learn more </h3>
  1. About the solution as a homogeneous mixture  brainly.com/question/637791
  2. Calculating the pH value of weak base brainly.com/question/9040743
  3. Flammability as one of the chemical properties brainly.com/question/1767022

Keywords: classify, each of these soluble solutes, as a strong electrolyte, a weak, a nonelectrolyte. drag each item to the appropriate bin, acids, bases, dissolve, ionize, conduct electricity, water

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Two workers are sliding 300 kg crate across the floor. One worker pushes forward on the crate with a force of 400 N while the ot
almond37 [142]

Answer:

The kinetic coefficient of friction of the crate is 0.235.

Explanation:

As a first step, we need to construct a free body diagram for the crate, which is included below as attachment. Let supposed that forces exerted on the crate by both workers are in the positive direction. According to the Newton's First Law, a body is unable to change its state of motion when it is at rest or moves uniformly (at constant velocity). In consequence, magnitud of friction force must be equal to the sum of the two external forces. The equations of equilibrium of the crate are:

\Sigma F_{x} = P+T-\mu_{k}\cdot N = 0 (Ec. 1)

\Sigma F_{y} = N - W = 0 (Ec. 2)

Where:

P - Pushing force, measured in newtons.

T - Tension, measured in newtons.

\mu_{k} - Coefficient of kinetic friction, dimensionless.

N - Normal force, measured in newtons.

W - Weight of the crate, measured in newtons.

The system of equations is now reduced by algebraic means:

P+T -\mu_{k}\cdot W = 0

And we finally clear the coefficient of kinetic friction and apply the definition of weight:

\mu_{k} =\frac{P+T}{m\cdot g}

If we know that P = 400\,N, T = 290\,N, m = 300\,kg and g = 9.807\,\frac{m}{s^{2}}, then:

\mu_{k} = \frac{400\,N+290\,N}{(300\,kg)\cdot \left(9.807\,\frac{m}{s^{2}} \right)}

\mu_{k} = 0.235

The kinetic coefficient of friction of the crate is 0.235.

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An object of mass 300 g, moving with an initial velocity of 5.00i-3.20j m/s, collides with an sticks to an object of mass 400 g,
Alexus [3.1K]

Answer:

Velocity is 2.17 m/s at an angle of 9.03° above X-axis.

Explanation:

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Mass of object 2 , m₂ = 400 g = 0.4 kg

Initial velocity of object 1 , v₁ = 5.00i-3.20j m/s

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Comparing

1.5 i + 0.24 j = 0.7v

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Magnitude of velocity      

       v=\sqrt{2.14^2+0.34^2}=2.17m/s

Direction,  

       \theta =tan^{-1}\left ( \frac{0.34}{2.14}\right )=9.03^0

Velocity is 2.17 m/s at an angle of 9.03° above X-axis.

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