Acids, Bases and pH

Zn(OH)₂ is an example of a...

• acid

• base

• salt

• water

H₂S would be the formula for:

• Sulfurous acid

• Sulfuric acid

• Hydrosulfuric acid

• Hydrosulfurous acid

Human blood has a pH between 7.35 and 7.45. Which of the following best describes human blood?

• strongly acidic

• strongly basic

• slightly acidic

• slightly basic

Which of the following pairs are strong acids?

• HNO₃ and HF

• HClO₄ and H₂SO₃

• H₂SO₄ and HF

• HCl and HClO₄

When Magnesium metal and Hydrochloric acid react they produce:

• hydrogen and magnesium chloride

• chlorine and strontium oxide

• strontium iodide and water

• hydrogen chloride and iodine

When bases ionize they release:

• Hydrogen ions(H⁺)

• Hydroxide ions(OH^-)

• water and a salt

• sodium ions(Na⁺)

The salt NaC₂H₃O₂ would form from the combination of:

• Tartric acid and sodium hydroxide

• sodium chloride and nitric acid

• Acetic acid and sodium hydroxide

• sodium acetate and water

An acidic solution would:

• taste bitter and turn litmus blue

• turn bromothymol blue yellow and feel slippery

• Be corrosive and release hydroxide ions

• taste sour and turn blue litmus red

H₃PO₄ is an example of a ...

• acid

• salt

• base

• non-electrolyte

Two properties of JUST acids are:

• Corrosive and donate hydroxide ions

• Taste sour and pH less than 7

• electrolytes and feel slippery

• dissolve fats and oils and turns blue litmus red