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Look at the reaction below.
H(aq) + Ca(OH)2(aq) —>CaSO4(aq) + 2H20(1)
Which substance is the base in the reaction?
2H20 (1)
H2SO4 (aq)
CaSO4 (aq)
Ca(OH)2 (aq)

Look at the reaction below Haq CaOH2aq gtCaSO4aq 2H201 Which substance is the base in the reaction 2H20 1 H2SO4 aq CaSO4 aq CaOH2 aq class=

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Oseni

Answer:

Ca(OH)2 (aq)

Explanation:

The base in the reaction would be Ca(OH)2 (aq).

A base is a substance which when dissolved in water, releases [tex]OH^-[/tex] as the only negative ion.  A base is also a substance that donates electrons and accept protons in a reaction.

Ca(OH)2 in aqueous solution will ionize thus:

[tex]Ca(OH)_2 (aq) --> Ca^{2+} (aq) + OH^- (aq)[/tex]

In a reaction involving an acid, the hydroxyl ion donates its electron and accept proton.

[tex]H^+ + OH^- --> H_2O[/tex]

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