Acids & Bases

A(n) ______ is a substance with a pH less than 7

• Acid
• Alkaline
• Base
• Buffer

Which solution releases H+ in solution?

• Base
• Acid
• Buffer
• Water

This substance releases OH- into solution

• Acid
• Base
• Neutral

What does pH measure?

• the amount of hydrogen (H⁺) ions

• the amount of hydroxide (OH^-) ions

• amount of water

• all of the above

Tags

NGSS.MS-PS1-1

Which best describes a basic substance?

• Sour Taste and Slippery Feel

• Sour Taste and Stinging Feel

• Bitter Taste and Stinging Feel

• Bitter Taste and Slippery Feel

Bases will turn litmus paper __________, while acids will turn litmus paper __________.

• blue.....red
• red.....blue
• pink.........colourless
• colourless..........pink

Tags

NGSS.MS-PS1-2

An arrhenius acid is a solution where

• the only negative ion to dissociate is OH

• the only negative ion to dissociate is Cl

• the only positive ion to dissociate is H

• the only positive ion to dissociate is Na

When OH- is the only ion to dissociate in a solution, the solution is considered

• an arrhenius base

• an arrhedius acid

• a bronsted - lowry base

• a bronsted - lowry acid

As the concentration of hydrogen ions increases, the pH will

• increase

• decrease

• remain the same

Which of the following represents a neutralization reaction?

• NaCl + CaBr₂ --> NaBr + CaCl₂

• HCl + NaOH --> NaCl + H₂O

• Na + CuOH --> NaOH + Cu

• LiOH + F₂ --> LiF + OH^-