Answer:The mole is important because it allows chemists to work with the subatomic world with macro world units and amounts. Atoms, molecules and formula units are very small and very difficult to work with usually. However, the mole allows a chemist to work with amounts large enough to use.
Explanation:
Answer:
Zinc
The element was probably named by the alchemist Paracelsus after the German word Zinke (prong, tooth).
Explanation:
A chemical or physical change
Answer:
The reactants would appear at a higher energy state than the products.
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E=MC(delta)T
=20.0g x 9.00J/g x (94.4-22.8) C
= 12,924.0 J