Acids & Bases

Four substances were tested for pH, lemon juice (pH 2), baking soda (pH 9), bleach (pH 12), and milk (pH 6). Which of the following correctly lists the substances from most basic to acidic?

• lemon juice, milk, baking soda, bleach

• bleach, baking soda, milk, lemon juice

• milk, lemon juice, baking soda, bleach

• baking soda, bleach, lemon juice, milk

Tags

NGSS.MS-PS1-2

Which of these is a property of acidic solutions?

• they taste sour

• they feel slippery

• they are in many cleaning products

• they taste bitter

A sugar solution has a pH of 7. This means the sugar solution is:

• acidic

• basic

• neutral

Is HNO₃ an acid or base?

• Acid
• Base

KOH will release which ion?

• OH-
• H+
• OH+
• H-

In the equation below, what is the Conjugate Acid (CA)?

HCl + NH₃ --> Cl^- + NH₄⁺

• HCl

• NH₃

• Cl^-

• NH₄⁺

Acids or bases that are "strong" __.

• always dissociate in water

• always have a high pH

• always have a high concentration

The table shows the pH of several solutions. Which solution has the greatest concentration (amount) of H⁺ ions?

• vinegar

• milk

• water

• bleach

Tags

NGSS.MS-PS1-2

Which is NOT a property of bases?

• caustic

• corrosive

• pH below 7

• bitter

Which is NOT a property of acids?

• slippery

• pH below 7

• dissociate in water

• contain H¹⁺ ions