2 years ago

A solid is dissolved in a liquid, and over time a solid forms again. How can

Chemistry

1 answer:

vazorg [7]2 years ago

7 0

I think B is write but even I’m not sure

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The enthalpy change for the reaction of titanium metal with gaseous iodine is given by the following thermochemical equation: 2

julia-pushkina [17]

Answer : The enthalpy change for the reaction is, 419.5 kJ

Explanation :

According to Hess’s law of constant heat summation, the heat absorbed or evolved in a given chemical equation is the same whether the process occurs in one step or several steps.

The given chemical reaction is,

$2Ti(s)+3I_2(g)\rightarrow 2TiI_3(s)$ $\Delta H=-839kJ$

Now we have to determine the enthalpy change for the reaction below:

$TiI_3(s)\rightarrow Ti(s)+\frac{3}{2}I_2(g)$ $\Delta H'=?$

By reversing and then dividing the reaction by 2, we get the enthalpy change for the reaction.

The expression will be:

$\Delta H'=-\frac{(\Delta H)}{2}$

$\Delta H'=-\frac{(-839kJ)}{2}$

$\Delta H'=419.5kJ$

Therefore, the enthalpy change for the reaction is, 419.5 kJ

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2 years ago

What type of consumer are bears?

sashaice [31]

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it can be both a primary consumer (if it eats plants) and secondary & tertiary consumers (if it eats a plant-eating animal). so it depends on what it eats.

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2 years ago

What word is used to refer to a group of organ systems working together?

kotegsom [21]

Answer:

Explanation:

in my opinion,The answer would be organism

please mark me as brainliest

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2 years ago

Water vapor turning to frost is an example of __________.

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