Explanation:
Formula to calculate heat capacity is as follows.
= a + bT + 
where, a, b and c are constants.
Their values at 
are as follows.
a = 
b = 
c = 
Hence, putting the given values into the above formula as follows.
= a + bT +
= 
kJ/mol K
= 14.43 kJ/mol K
Thus, we can conclude that the heat capacity of crystalline calcium carbide at 49.0
is 14.43 kJ/mol K.
Answer:
yes (true)
Explanation:
Star gazing has started to become a more popular hobby in todays world due to the pandemic
Hydrocarbon any of a class of organic chemical compounds composed only of the elements carbon C and hydrogen h the carbon atoms join together to form the framework of the compound in the Hydrogen atoms attached to them many different configurations hydrocarbon of petroleum and natural gas they server as fuels and lubricants as well as raw materials for the production of plastic fibers rubbers solvents explosive and Industrial chemicals
Answer:
They want to know how long it has been since it last erupted.
Explanation:
Scientists study a volcano's history to try to predict when it will next erupt. They also want to know the time span between its previous eruptions
Building a tower out of magnetic blocks and water vapor condensing on a bathroom mirror are only physical changes.
A physical change is easily reversible. It does not involve a change in the composition of a substance.
A tower built out of magnetic blocks can easily be pulled apart and water that condensed on a bathroom mirror can easily change back to vapour by heating.
All these are possible because the both processes are only physical changes.
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