Write and balance the equation for the decomposition of aluminum chloride into its elements. phase symbols are optional.
2 answers:
Explanation:
A balanced equation is an equation in which number of molecules on both left and right side are the same or equal.
When aluminium chloride decomposes then it gives aluminium and chlorine gas.
The decomposition reaction will be as follows.
Therefore, we can see that number of molecules on the reactant and product side are same. Hence, this equation is balanced.
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The given mass of cobalt chloride hydrate = 2.055 g
A sample of cobalt chloride hydrate was heated to drive off waters of hydration and the anhydrate was weighed.
The mass of anhydrous cobalt chloride = 1.121 g anhydrate.
The mass of water lost during heating = 2.055 g - 1.121 g = 0.934 g
Converting mass of water of hydration present in the hydrate to moles using molar mass:
Mass of water = 0.934 g
Molar mass of water = 18.0 g/mol
Moles of water =