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Semmy [17]
3 years ago
13

What is crystallization in the rock cycle?

Chemistry
1 answer:
RideAnS [48]3 years ago
7 0

Answer:

Crystallization. Magma cools either underground or on the surface and hardens into an igneous rock. As the magma cools, different crystals form at different temperatures, undergoing crystallization. For example, the mineral olivine crystallizes out of magma at much higher temperatures than quartz.

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What state of matter has a fixed amount of volume but can change shapes according to its container?
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6 0
3 years ago
The boiling point of liquid oxygen is 90.2 k at atmospheric pressure. (a) what is this temperature on the celsius scale?
steposvetlana [31]
Oxygen  is a  liquid  under   one atmosphere.  the  boiling  point  of  a  substance is the temperature  at  which  vapor  pressure  of a  liquid  is  equal  to  the  pressure  of  the  surrounding liquid. the boiling  point  of  oxygen  at  this  case  is  90.0k. Therefore  the  temperature of oxygen is 90-273=  -183  celsius  scale
6 0
3 years ago
Use tabulated standard electrode potentials to calculate the standard cell potential for the following reaction occurring in an
SVETLANKA909090 [29]

Answer : The standard cell potential of the reaction is, -1.46 V

Explanation :

The given balanced cell reaction is,  

3Pb^{2+}(aq)+2Cr(s)\rightarrow 2Cr^{3+}(aq)+3Pb(s)

Here, chromium (Cr) undergoes oxidation by loss of electrons and act as an anode. Lead (Pb) undergoes reduction by gain of electrons and thus act as cathode.

The standard values of cell potentials are:

Standard reduction potential of lead E^0_{[Pb^{2+}/Pb]}=-0.13V

Standard reduction potential of chromium E^0_{[Cr^{3+}/Cr]}=1.33V

Now we have to calculate the standard cell potential for the following reaction.

E^0=E^0_{cathode}-E^0_{anode}

E^0=E^0_{[Pb^{2+}/Pb]}-E^0_{[Cr^{3+}/Cr]}

E^0=(-0.13V)-1.33V=-1.46V

Therefore, the standard cell potential of the reaction is, -1.46 V

6 0
4 years ago
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