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NeTakaya
3 years ago
9

20 mL of 80°C water is mixed with 20 mL of 0°C water in a perfect calorimeter. What is the final temperature?

Chemistry
1 answer:
OLga [1]3 years ago
5 0
Times it bye for then ur answer will be 80
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Which describes the molecule shown below?
lana [24]

Answer:

Option D. Saturated alkane

Explanation:

To know which option is correct, it is important that we know what saturated and unsaturated compounds are in this context.

Saturated hydrocarbons are compounds which has only carbon to carbon single bonds (C–C) in its chain. A very good example of such compound is the Alkanes.

Unsaturated hydrocarbons are compounds which has either a carbon to carbon double bond (C=C) or a carbon to carbon triple bond (C≡C) in its chain. Examples of such compounds include alkenes and alkynes.

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3 years ago
The volume of gas is 252 mL at 340.0 kPa pressure. What will the volume be when the pressure is reduced to 50.0 kPa? Temperature
MrRissso [65]

Answer:

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3 years ago
The following drawing is a representation of a reaction of the type A → B, where different shaded spheres represent different mo
Alex73 [517]

Answer: The given reaction is non-spontaneous at low temperatures and spontaneous at high temperatures.

Explanation:

We know that relation between free energy and enthalpy is as follows.

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As in the given drawing, solid is converting into gas. This means that there is occurring an increase in entropy of the system. This also means that the enthalpy change will also be positive.

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Gekata [30.6K]

Answer:

The answer to your question is: letter D.

Explanation:

Double replacement reaction is when the cation of one reactant replaces the metal of the other reactant and vice versa.

a. 2SO2 + O2 —> 2S03                          This is a combination reaction

b. Zn + Cu(NO3)2 → Zn(NO3)2 + Cu      This is a single replacement reaction.

c. 2H2O2–> 2H2O + O2                         This is a decomposition reaction

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