Respuesta :
Answer:
[tex]CaH_2(s) +2H_2O(l) \rightarrow Ca(OH)_2 (aq) + 2H_2 (g)[/tex]
Explanation:
[tex]CaH_2(s) +H_2O(l) \rightarrow Ca(OH)_2 (aq) + H_2 (g)[/tex]
In this reaction, calcium is balanced in either side. No. of atoms of 'H' and 'O' are not balanced. To balance O atoms, multiply [tex]H_2O[/tex] by 2. Now the reaction becomes:
[tex]CaH_2(s) +2H_2O(l) \rightarrow Ca(OH)_2 (aq) + H_2 (g)[/tex]
Now, to balance H atoms, multiply H2 by 2.
[tex]CaH_2(s) +2H_2O(l) \rightarrow Ca(OH)_2 (aq) + 2H_2 (g)[/tex]
Now, each element is balanced.
Calcium hydride reacts with water to form calcium hydroxide (aqueous) and hydrogen gas.
Balanced chemical equation:
[tex]CaH_2(s)+2H_2O(l)--->Ca(OH)_2(aq)+2H_2(g)[/tex]
When Calcium hydride reacts with water, calcium hydroxide (aqueous) and hydrogen gas are formed.
For a balanced chemical reaction, the number of atoms for each element should be equal at both the sides i.e. reactants and products side.
From the reaction, it is seen that all elements Calcium, hydrogen and oxygen all are balanced.
Find more information about Balanced chemical equation here:
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