Question

According to the Arrhenius definitions of acids and bases, choose the bases from the list of acids and bases. Check all that apply.

1. Ba(OH)2

2. HIO3

3. H2CO3

4. CsOH

Answer 1

Answer: Bases from the list of acids and bases are $Ba(OH)_{2}$ and CsOH.

Explanation:

According to Arrhenius, acids are the substance which when dissolved in water result in the formation of hydrogen or $H^{+}$ ions. Whereas bases are the substances which releases hydroxide or $OH^{-}$ ions when dissolved in water.

Therefore, out of the given options $Ba(OH)_{2}$ and CsOH are the substance that will completely dissociate into ions and form hydroxide ions when dissolved in water.

Answer 2

According to the Arrhenius definitions of acids and bases, the bases and acids from the lists are:

• Ba(OH)2
• CsOH

Based on the Arrhenius theory he defined acids to be the substances that have the power of dissociating in water.

• When they dissociate, they bring electrically charged molecule.

Acids are substances that dissociate in water to yield electrically charged atoms or molecules, Hydrogen ions would ionize to be hydroxide ions.

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