3 Acids and Bases SAQ1

Acids turn blue litmus red, react with metals to form hydrogen, are corrosive, and have a pH < 7.

A monobasic acid donates one H+ ion, whereas a dibasic acid donates two H+ ions.

The Arrhenius theory explains that strong acids dissociate in aqueous solution, forming hydrogen ions, which enables them to conduct electricity in water.

<p>The Arrhenius theory is limited to reactions that take place in water and does not explain the amphoteric behavior of certain substances.</p> Signup and view all the answers

<p>Acids usually need water before they can show their acidic properties because water enables the dissociation of acids into hydrogen ions.</p> Signup and view all the answers

<p>An acid is a substance that dissociates in aqueous solution, forming hydrogen ions, whereas an alkali is a base that dissolves in water.</p> Signup and view all the answers

<p>Neutralization is a reaction between an acid and a base that forms a neutral solution of salt and water.</p> Signup and view all the answers

<p>Weak acids and bases are poor conductors of electricity, whereas strong acids and bases are good conductors.</p> Signup and view all the answers

<p>Acids only conduct electricity in water because they dissociate in aqueous solution, forming hydrogen ions, which are responsible for the conductivity.</p> Signup and view all the answers

<p>A pH value less than 7 indicates an acid, while a pH value greater than 7 indicates a base, with a pH of 7 being neutral.</p> Signup and view all the answers

<p>Sodium hydroxide is considered a strong base because it completely dissociates in water, forming hydroxide ions, which is a characteristic of strong bases.</p> Signup and view all the answers

<p>Litmus is a indicator that turns red in acidic solutions and blue in basic solutions, allowing for the identification of acids and bases.</p> Signup and view all the answers

<p>An acid is a proton donor</p> Signup and view all the answers

<p>When an acid and a base react, they undergo neutralization, resulting in the formation of a salt and water, which is a neutral solution.</p> Signup and view all the answers

<p>Ammonia does not dissociate in aqueous solution.</p> Signup and view all the answers

<p>A strong acid is a good proton donor, while a weak acid is a poor proton donor.</p> Signup and view all the answers

<p>An acid and base differing by the presence or absence of a proton.</p> Signup and view all the answers