Acids and Bases

Which of the following substances is acidic?

• baking soda

• lemon-lime soda

• distilled water

• soap

What happens immediately after you dissolve acid in water?

• Positively charged hydrogen atoms are released

• Hydronium ions are released

• Negatively charged hydrogen atoms are released

• Neutrally charged hydrogen atoms are released

Tags

NGSS.MS-PS1-2

Acids are caustic to the touch. In this context, what does "caustic" mean?

• Stinging or burning

• Pleasant

• Sarcastic

• Gentle

A hydronium ion is like a(n) ______ molecule with an extra hydrogen atom.

• Acid

• Base

• Water

• Vinegar

Tags

NGSS.MS-PS1-1

What substance would do the best job of cleaning pots and pans?

• A substance with a pH of 7

• A substance with a pH of 4

• A substance with a pH of 2

• A substance with a pH of 8

. What is a property of bases?

• Slippery touch

• Sour taste

• Ability to dissolve metal

• Ability to form hydronium ions

How do acidic solutions taste?

• Delicious

• Sweet

• Bitter

• Sour

Which of the following substances is basic?

• Apple juice

• Ginger ale

• Baking soda

• Distilled water

pH stands for:

• Potency of hydrogen

• Plurality of hydrogen

• Potential of hydrogen

• Pleurisy of hydrogen

What do acids and bases have in common?

• They both eat away at metal

• They can both conduct electricity

• They both have a sour taste

• They both form positively charged ions when dissolved in water