2. The enthalpy (heat) of hydration of a soluble ionic compound such, as KCl, is

Chemistry

1 answer:

Tresset [83]1 year ago

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Need help on this question asap pleasee

algol [13]

Answer:

9.0 moles of CaO

Explanation:

We have the reaction equation as follows;

Fe2O3 + Ca3(PO4)2 -------> 2FePO4 + 3CaO

Now we know from the equation that;

1 mole of iron III oxide yields 3 moles of CaO

Therefore;

3 moles of iron III oxide yields 3 * 3/1

= 9.0 moles of CaO

6 0

1 year ago

How do you know when a phase change happens?

VladimirAG [237]

Answer:

phase for what?

Explanation:

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2 years ago

In principle, the equilibrium in the dehydration of an alcohol could be shifted to the right be removal of water. Why is this ta

Trava [24]

Answer:

See explanation

Explanation:

In this case, we have to remember that if we want to remove water from the reaction vessel we have to heat the vessel. So, we can convert the liquid water into gas water and we can remove it from the vessel. In this case, the products of dehydration for both molecules are (E)-4-methylpent-2-ene and cyclohexene with boiling points of 59.2 ºC and 89 ºC respectively. The boiling point of water is 100 ºC, therefore if we heat the vessel the products and water would leave the system, and the products would be lost.

See figure 1

I hope it helps!

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2 years ago

Why is argon monoatomic in nature

siniylev [52]

Argon monatomic in nature because it is a noble gas and has completely filled shells and thus does not form a bond with other elements.

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2 years ago

In regard to protective actions for explosive devices, the area where the blast originates is referred to as ___________ perimet

lianna [129]

This is to fill in the answer to the question.

The area where the blast originates is referred to as Scene Perimeter/Isolation Zone. This whole area is dangerous for people since it can contain harmful gasses or falling debris depending on the environment of the blast.

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2 years ago