Properties of Acids/Bases

According to the alternate theory of acids & bases an acid is defined as.....

• a proton acceptor

• a proton donor

• a proton

• a substance that produces hydrogen ions

Reacts with metals

• acid

• base

• both acid and base

Has a pH more than 7

• acid

• base

• both an acid and a base

Tastes bitter

• acid

• base

• both an acid and a base

Bases

• formed from joining positive and negative ions
• increase OH ions
• forms a salt and water
• increases H2O ions

Which of the following is a chemical property of a base

• a slippery feel
• conducts an electric current
• turns red litmus paper blue
• forms hydronium ions in water

The difference between a strong and weak acid is: 

• Strong acids stay intact in water weak acids don't 
• Strong acids are slippery weak acids aren't
• Strong acids break apart in water. Weak acids stay intact
• Weak acids break apart in water most of the time, strong acids do all of the time. 

John test a solution with bromcresol green. The solution turns yellow. What can be said about the pH of the solution?

• The solution has a pH less than 4

• The solution has a pH greater than 4

• The solution has a pH greater than 7

• The solution has a pH more than 4

A Bronsted Lowry base:

• donates H+ to another substance

• accepts H+ from another substance

• produces H+

• produces OH-

In the equation below, what is the Bronsted Lowry acid (donates H⁺)?

HCl + NH₃ → Cl^- + NH₄⁺

• HCl

• NH₃

• Cl^-

• NH₄⁺