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3 years ago

Describe three different scenarios where a chemical process or reaction shows an increase in entropy.

1 answer:

4 0

The request is characterized as knowing where things are and having the capacity to discover and utilize the things.
In a compound procedure, there is more issue, more entropy when the particles
1. warm up, increment in temperature. The atoms are more disorganized
2. get stirred up and must be isolated with exertion. Bedlam.
3. state changes, dissolves, vaporizes. The atoms are more turbulent
4. respond to frame a pack of various particles. More disorder

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What is the identity of a 100. g sample of metal that, upon absorbing 4680 J of heat, increases in temperature by 52.0°C?

krok68 [10]

The metal is aluminium

<u>Explanation:</u>

Given:

Heat, q = 4680 J

Mass, m = 100g = 0.1kg

ΔT = 52°C

sample = ?

We know:

q = mcΔT

On substituting the value we get:

$4680 = 0.1 X c X(52)\\\\c = \frac{4680}{5.2} \\\\c = 900 J/Kg^oC$

Thus, the metal is aluminium which has a specific heat capacity of 900 J/kg°C

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3 years ago

Zinc metal (Zn) will react with aqueous hydrochloric acid (HCI aq) to produce aqueous zinc chloride (ZnCl2 aq) and hydrogen gas

Debora [2.8K]

Answer:

$5$

Explanation:

Here, we want to get the equation of the reaction between Hydrochloric acid and Zinc metal

Zinc metal displaces the hydrogen from hydrochloric acid to form zinc chloride

We have the equation of reaction as:

$2HCl_{(aq)}\text{ + Zn}_{(s)}\text{ }\rightarrow\text{ ZnCl}_{2(aq)}\text{ + H}_{2(g)}$

3 0

1 year ago

I know this isn't school-related but Is all-purpose flour the same as self-rising flour?

Rainbow [258]

Answer:yes

Explanation:

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3 years ago

Read 2 more answers

Which of the following atoms will not react with water? A. K B. Li C. Pb D. Na

Montano1993 [528]

The answer would be C. Pb

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3 years ago

What element do you think is the most abundant in the star that you observed in part two? explain your answer?

mote1985 [20]

The most abundant element in the Sun and in the stars are hydrogen and helium. Like most of the stars, there is a spontaneous radioactive reaction happening in the Sun. Hydrogen is transformed into Helium. As long as the stars are young, the most abundant element is hydrogen.

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3 years ago