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bagirrra123 [75]

2 years ago

10

Which colloid is more stable milk or ice cream and how do you know

2 answers:

ipn [44]2 years ago

8 0

Answer:

Milk is more stable than ice cream

Explanation:

The colloid formed by ice cream remains stable only at cold temperatures .

In a stable colloid, one substance does not settle out of the other. When ice cream is above its freezing point, its dispersed particles begin to move faster and start to collide with each other, and they sometimes stick together. Eventually, the particles grow so large that they can no longer remain dispersed, and they settle out of the colloid.

Marianna [84]2 years ago

7 0

The stable milk because it stable

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the elements iron (Fe), copper (Cu), and mercury (Hg) are classified as metals. which physical property of metals do they all sh

koban [17]

Answer:

They are heavy metals.

Explanation:

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3 years ago

Five more than two times the square root of a number is fifteen. What’s the number

ryzh [129]

The number is 25. The square root of 25 is 5 and 5x2 is 10 and then 10+5 is 15

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8. which change in state is associated with the heat of vaporization,

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The answer is 2, liquid to vapor because vaporization is the process of liquids to vapors.

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3 years ago

What is the energy released in this β − β − nuclear reaction 40 19 K → 40 20 C a + 0 − 1 e 19 40 K → 20 40 C a + − 1 0 e ? (The

Effectus [21]

<u>Answer:</u> The energy released in the given nuclear reaction is 1.3106 MeV.

<u>Explanation:</u>

For the given nuclear reaction:

$_{19}^{40}\textrm{K}\rightarrow _{20}^{40}\textrm{Ca}+_{-1}^{0}\textrm{e}$

We are given:

Mass of $_{19}^{40}\textrm{K}$ = 39.963998 u

Mass of $_{20}^{40}\textrm{Ca}$ = 39.962591 u

To calculate the mass defect, we use the equation:

$\Delta m=\text{Mass of reactants}-\text{Mass of products}$

Putting values in above equation, we get:

$\Delta m=(39.963998-39.962591)=0.001407u$

To calculate the energy released, we use the equation:

$E=\Delta mc^2\\E=(0.001407u)\times c^2$

$E=(0.001407u)\times (931.5MeV)$ (Conversion factor: $1u=931.5MeV/c^2$ )

$E=1.3106MeV$

Hence, the energy released in the given nuclear reaction is 1.3106 MeV.

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