Acids, Bases & pH

The pH scale measures

• the acidity of a chemical
• the reactivity of a chemical
• the boiling point of a chemical
• the electrical conductivity of a chemical

Which substance releases positively charged Hydrogen ions (H+) when mixed with water?

• Bases

• Acids

• Buffers

• Salts

Tags

NGSS.MS-PS1-2

Which substance releases negatively charged Hydroxide ions (OH-) when mixed with water?

• Acids

• Bases

• Neutrals

• Liquids

Tags

NGSS.MS-PS1-2

A solution with a pH of 3.6 would be...

• Acid
• Base
• Neutral
• Acid and Base

Tags

NGSS.5-PS1-3

According to the pH range which substance is more acidic than lemon juice

• Hydrochloric acid
• cabbage
• milk

Tags

NGSS.MS-PS1-2

Bleach is a strong base, what is the pH level of bleach?

• 13
• 14
• 1
• 2

Tags

NGSS.MS-PS1-2

What might happen if you mixed a strong acid with an equally strong base?

• You would see an explosive chemical reaction.
• The acid would destroy the base.
• The base would destroy the acid.
• You'd wind up with a pH-neutral substance.

Tags

NGSS.MS-PS1-2

pH stands for:

• Potency of hydrogen
• Plurality of hydrogen
• Potential of hydrogen
• Pleurisy of hydrogen

What are properties of acids?

• Bitter, slippery, ph above 7
• Sour, reacts with metals, ph below 7
• Sour, reacts with metals, ph above 7
• Bitter, ph of 7, does not react with metals

Tags

NGSS.MS-PS1-2

What are properties of an alkali?

• Slippery, bitter, does not react with metals, pH above 7.

• Slippery, bitter, reacts with metals, pH below 7.

• Sour, reacts with metals, pH below 7

• Sour, reacts with metals, pH above 7.