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adell [148]
2 years ago
11

What is the name of CaCl2 7H2o

Chemistry
1 answer:
Tanya [424]2 years ago
6 0

Answer:

calcium chloride dihydrate

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It is stored in the bonds between atoms.
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A reaction is non-spontaneous at any temperature when
slavikrds [6]

Answer:

A reaction is non-spontaneous at any temperature when the Gibbs free energy > 0.

Explanation:

There is a state function, that determines if a reaction is sponaneous or non spontaneous:

ΔG = Gibbs free energy

A reaction is non spontaneous when it does require energy to produce that reaction. It will be spontaneous, when the reaction does not require energy to be occured.

The formula is: ΔG = ΔH - T.ΔS

ΔH → Enthalpy → Energy gained or realeased as heat.

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T  → Temperature

ΔS → Entropy →  Degree of disorder of a system.

When the system has a considered disorder ΔS > 0, disorder increases.

When the system is more ordered, ΔS < 0, disorder decreases.

The reaction will be non spontaneous if, the enthalpy is positive (endothermic reaction) and the ΔS < 0 (disorder decreases). It will not occur if we do not give energy.

ΔG < 0 → Spontaneous reaction

ΔG > 0 → Non spontaneous reaction

ΔG = 0 → System in equilibrium

8 0
3 years ago
How many liters are contain 1.75 mol of f2 gas at stp?
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At STP condition 1 mol of any ideal gas will have a volume of 22.4L

1.75 mol of F2 x 22.4 L / 1 mol = 39.2 L
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