Answer:
c. Substance
Explanation:
A composition variable is an intensive property that indicates the relative amount of a particular species or substance in a phase.
Answer:
The solid will sublime into a gas
Explanation:
In the graph in the attachment
Y-axis represents pressure in mm of Hg
X- axis represents temperature in degree Celsius
The graph show the triple point of water.
Clearly, the sample will go from solid to vapor directly, no liquid involved (pink line is there to show that this is below triple point)
So
expect sublimation
The solid will sublime into a gas.
I believe the correct answer is true. Voltaic cells produces current from spontaneous reactions and is also known as galvanic cell. For electrolytic cells the reactions are not spontaneous and requires input of current for the reaction to occur.
It’s D. they do have a survival advantage since they are darker.