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91)  Below is a representation of the unit cell for nickel(II) oxide. How many O2 anions are there in the ...
2 days ago in Chemistry (Science-Related Homework Help) by Bubblyparabola

Below is a representation of the unit cell for nickel(II) oxide. How many O2– anions are there in the unit cell?

image



▸ 1

▸ 4

▸ 8

▸ 13

▸ 14
92)  Re: Based on the phase diagram of a pure substance given below, which statement is true?
Best Answer • 2 days ago in Chemistry (Science-Related Homework Help) by shadowblacw

Point B represents the critical temperature and pressure for the substance.
93)  Based on the phase diagram of a pure substance given below, which statement is true?
2 days ago in Chemistry (Science-Related Homework Help) by Rosa

Based on the phase diagram of a pure substance given below, which statement is true?

image



▸

The solid phase has a lower density than the liquid phase.



▸

The triple point is at a higher temperature than the normal melting point.



▸

The substance changes from a solid to a liquid as one follows the line from C to D.



▸

The substance changes from a liquid to a gas as one follows the line from C to D.



▸

Point B represents the critical temperature and pressure for the substance.
94)  Re: Based on the phase diagram of a pure substance given below, what phase exists at point F?
Best Answer • 2 days ago in Chemistry (Science-Related Homework Help) by finley07
vapor
95)  Based on the phase diagram of a pure substance given below, what phase exists at point F?
2 days ago in Chemistry (Science-Related Homework Help) by mitch44

Based on the phase diagram of a pure substance given below, what phase exists at point F?

image



▸ vapor + liquid

▸ vapor

▸ liquid

▸ solid

▸ supercritical fluid
96)  Re: Based on the phase diagram of a pure substance given below, what is the significance of the point ...
Best Answer • 2 days ago in Chemistry (Science-Related Homework Help) by paris.chen
It is the critical point.
97)  Based on the phase diagram of a pure substance given below, what is the significance of the point ...
2 days ago in Chemistry (Science-Related Homework Help) by aznmistyblue

Based on the phase diagram of a pure substance given below, what is the significance of the point labeled B?

image



▸ It is the normal melting point.

▸ It is the triple point.

▸ It is the critical point.

▸ It is the normal sublimation point.

▸ It is the normal boiling point.
98)  Re: Based on the phase diagram of a pure substance given below, what change of state occurs as the ...
Best Answer • 2 days ago in Chemistry (Science-Related Homework Help) by nalsaidy
The substance increases in temperature with a phase change from solid to vapor.
99)  Based on the phase diagram of a pure substance given below, what change of state occurs as the ...
2 days ago in Chemistry (Science-Related Homework Help) by remmylp

Based on the phase diagram of a pure substance given below, what change of state occurs as the substance changes from point C to point D?

image



▸ The substance increases in temperature with a phase change from solid to liquid.

▸ The substance increases in temperature with a phase change from solid to vapor.

▸ The substance increases in temperature with a phase change from liquid to vapor.

▸ The substance increases in temperature but does not undergo a phase change.

▸ The substance increases in temperature and becomes a supercritical fluid.
100)  Re: At what temperature does ethanol boil on a day in the mountains when the barometric pressure is 547 ...
Best Answer • 2 days ago in Chemistry (Science-Related Homework Help) by TAE29
69.9°C
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