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iren2701 [21]
2 years ago
16

Which analogy best represents a supersaturated solution? an empty elevator that has a maximum load of 20 people a single person

in an elevator that has a maximum load of 20 people 20 people in an elevator that has a maximum load of 20 people 25 people in an elevator that has a maximum load of 20 people
Chemistry
2 answers:
Karo-lina-s [1.5K]2 years ago
8 0
25 people in an elevator that has a maximum load of 20 people
Salsk061 [2.6K]2 years ago
4 0
Okay 25 people in an elevator that has a maximum load of 20 people so the best choice for your anwser is D
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Wich formula equation represents the burning of a sulfur to produce sulfur dioxide?
erastova [34]
The balanced reaction that describes the reaction between sulfur<span> and oxygen to </span>produce sulfur dioxide<span> is expressed S(s) + O2 (g) = SO2 (g)</span>
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What is the mass number, symbol, and charge of an atom that contains 19 protons, 20 neutrons and 19 electrons?
Crazy boy [7]

Answer:

Explanation:

mass number = 19 + 20 = 39 (protons + neutrons)

The charge is  0. This is an atom

The symbol = K

Protons: 19

Electrons: 19

Neutrons: 20

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Why do astronauts have to wear pressurized suits in space? Need to know for homework!
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3 years ago
If a reaction mixture contains only N2O and NO2 at partial pressures of 1.0 atm each, the reaction will be spontaneous until som
Vesna [10]

Answer:

Temperature required = 923K

Explanation:

The question is incomplete as there are some details that has to be given. details like the values of the standard enthalpies and entropies of the reactants and product as this is needed to calculate the actual value of the standard enthalpies and standard entropies of the reaction. I was able to get those values from literature and then calculated what needs to be calculated.

From there, I was able to use the equation that shows the relationship between, gibb's free energy, enthalpy, entropy and temperature. The necessary mathematical manipulation were done and the values were plugged in to get the temperature required to make the reaction spontaneous.

A few notes on the Gibb's free energy.

The Gibb's free energy also referred to as the gibb's function represented with letter G. it is the amount of useful work obtained from a system at constant temperature and pressure. The standard gibb's free energy on the other hand is a state function represented as Delta-G, as it depends on the initial and final states of the system.

The spontaneity of a reaction is explained by the standard gibb's free energy.

  • If Delta-G = -ve ( the reaction is spontaneous)
  • if Delta -G = +ve ( the reaction is non-spontaneous)
  • if Delta-G = 0 ( the reaction is at equilibrium)

The step by step calculations is done as shown in the attachment.

3 0
3 years ago
I) What could Linda do to find out if there were salts dissolved in the
zhenek [66]

Answer:

she can use crystalization method.

Explanation:

She should boil that liquid on  flame and then cool it down on mederate temprature and check it out rather the crystals formed or not . if crystals are formed then there will be salts.

And if she want topredict the certain salt then she has to perform certain reactions.

6 0
3 years ago
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