acids ,bases and salts

Which of the following values would represent the pH of a strong base?

• 1

• 8

• 7

• 13

Which of the following values would represent the pH of a strong acid?

• 1

• 6

• 7

• 13

What range of values on the pH scale represent solutions with a higher ratio of hydronium (H₃O⁺) ions?

• 0-14

• below 7

• 7

• above 7

Pure water (H₂O) has a pH of 7 and would be classified as...

• a base

• a neutral substance

• both an acid and a base

• an acid

The reactants in a neutralization reaction are always...

• salt and water

• an acid and a base

• a neutral solution

• carbon dioxide and oxygen

Tags

NGSS.MS-PS1-5

Which indicator is colourless in acid and pink in alkali?

• Litmus

• Phenolphthalein

• Universal Indicator

• Methyl Orange

Complete this equation:

sulfuric acid + potassium hydroxide -->

• potassium oxide + hydrogen

• potassium chloride + water

• potassium sulfate + hydrogen

• potassium sulfate + water

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Do acids and bases conduct electricity?

• Only acids conduct electricity

• Only bases conduct electricity

• Bases and acids conduct electricity

• Neither conduct electricity

Tags

NGSS.MS-PS2-3

Acidic solutions exhibit a higher ratio of H₃O⁺ ions, known as...

• neutrons

• hydroxide

• electrons

• hydronium

Pickles form by soaking in an acid. What are some properties of pickles

• Conducts electricity, bitter, turns litmus blue
• Slippery, sour, turns litmus blue
• Slippery, bitter, turns litmus blue
• Sour, turns litmus red, can conduct electricity

Tags

NGSS.MS-PS1-2