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torisob [31]
4 years ago
6

When two substances that cannot dissolve each other are mixed, a mixture is formed. a heterogeneous mixture that has very small

dispersed particles and stays mixed for a long time is
a. a heterogeneous mixture that has larger dispersed particles that settle over time is
a?
Chemistry
2 answers:
skelet666 [1.2K]4 years ago
7 0
<h2>Answer 1) Colloids</h2><h3>Explanation : </h3>

When two substances that cannot dissolve each other are mixed, a mixture is formed. a heterogeneous mixture that has very small dispersed particles and stays mixed for a long time is  a "Colloid"

An example of colloid can be gels, sols, or emulsions; where solids or liquids are dispersed in the mixture. It usually takes very long time to settle down.

<h2>Answer 2) Suspension</h2><h3>Explanation :</h3>

A heterogeneous mixture that has larger dispersed particles that settle over time is a "Suspension"

Suspensions are those mixtures which usually has large particles and which takes comparatively less time than colloids to get settled. Like salt water, muddy water, fine sand in water, etc.

Rudiy274 years ago
5 0
<h2>Answer:</h2>

a: The heterogeneous mixture that has very small dispersed particles and stays mixed for a long time is colloid. Because colloid has particles that are small enough to suspended but are as large that they can scatter light.

b: A heterogeneous mixture that has large dispersed particles that settle over time is a suspension. Suspension can occur in liquids or gases but not in solids. There particles settle down slowly over time.

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When Δ H > 0 that means this is an endothermic reaction, and we can assume heat as one of the reactants. SO when the temperature increases so the reaction will move rightward to decrease the reactants and increase the products and as the products increase it will make the Kw increase also as
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3 years ago
If 30.0 mL of a 12.0 M hydrochloric acid (HCI) stock solution is diluted to a volume of 500.0 mL,
klemol [59]

Answer:

The concentration of dilute solution is 0.72M

Explanation:

According to the given question

V1=30 ml

 S1 = 12 M

 V2= 500 ml

then S2 =?

  we all know that V1S1=V2S2

                           or  S2= V1S1÷V2

                            or  S2 = 30×12÷500

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The concentration of dilute solution is 0.72 M

5 0
3 years ago
Earth's gravitational potential energy: GPE = mgh = Gravity (9.81m/s2) Mass (kg) x Height (m) Kinetic energy: KE = mu? How do th
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3 years ago
The pressure inside a compressed gas cylinder is 144 atm at 48°C. What will the pressure inside the cylinder be after it is cool
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<h3>Answer:</h3>

134 atm

<h3>Explanation:</h3>
  • Based on the pressure law, the pressure of a gas varies directly proportionally to the absolute temperature at a constant volume.
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\frac{P1}{T1}=\frac{P2}{T2}

In this case;

Initial pressure, P1 = 144 atm

Initial temperature, T1 (48°C) = 321 K

Final temperature, T2 (25°C) = 298 K

We need to find the final pressure,

Therefore;

P2 = (P1/T1)T2

    = (144/321)× 298 K

    = 133.68 atm

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Therefore, the new pressure will be 134 atm.

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4 years ago
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S_A_V [24]

Answer:

B

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