Spontaneous = exothermic. If it is not spontaneous, it is endothermic. ΔG > 0, which means that the reaction uses energy instead of emitting it.
Answer:
the simplest answer is it loses the water (decahydrate) because it evaporates
Answer:

Explanation:
You can put that equation into a program like desmos on your browser and take a screenshot or use windows snippet tool.
Equation of a Wave: y = Acos(((2*pi)/B)x)
or

A = Amplitude
B= Wavelength
Answer:
-2
Explanation:
eACH ELEMENT HAS AN SPECIFIC VALENCE, FOR EXAMPLE, CARBON (+2),+4 IN THE CASE OF OXYGEN IS -2
Answer:
Gravitational potential energy may be converted to other forms of energy, such as kinetic energy. If we release the mass, gravitational force will do an amount of work equal to mgh on it, thereby increasing its kinetic energy by that same amount (by the work-energy theorem).
Explanation: