Acid and Base

Which of the following statements is correct?

• Blue litmus paper turns red when placed in a base.

• Red litmus paper turns blue when placed in a base.

• Blue litmus paper stays blue when placed in an acid.

• Red litmus paper stays red when placed in a base.

WHAT ARE THE PROPERTIES OF ACID ?

• Acids are corrosive, sour,

• Lemon

• Mint

• tastes bitter

Soap is a weak base.  What is true about the taste of bases?

• they taste sour

• they taste sweet

• they taste bitter

• they taste salty

Which of these solutions is an acid?

• Dish Soap: pH of 12

• Tomato Soup: pH of 4

• Baking Soda: pH of 9

• Drain Cleaner: pH of 14

From which point to which point in the pH scale is Base

• 7.1- 14

• 0- 6.9

• 6.2- 9.1

• 12- 14

Feels slippery.

• Acids

• Bases

• All

What is the conjugate acid in the following equation?

• PO₄^3- 

• HNO₃ 

• NO₃^- 

• HPO₄^2-
  

Which of the following correctly identifies an acid-base pair?

• HCl, NaOH

• H₂CO₃ , CO₃^2-

• H₃O⁺ , OH^-

• NH₄⁺, NH₃

Which of the following correctly identifies an Acid-Base Pair?

• HH₄⁺ , OH^-

• H₂O , OH^-

• CaCO_{3 ,}CaCl₂

• HNO₃ , H₂SO₄

Which of the following word pairs correctly completes the sentence below? _______ are corrosive substances characterized as having a strong smell, a sour taste, and are able to give up a H⁺ ion.

• Acids

• Amphoteric Compound

• Bases

• Electrolyte