Acid-Base Reactions

Which of the following is a neutralization reaction?

• 2Na + Cl₂ → 2NaCl

• CH₄ + 2O₂ → CO₂ + 2H₂O

• HCl + KOH → KCl + H₂O

• CaCO₃ → CO₂ + CaO

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

As the pH of a solution gets lower, the solution becomes more _____.

• acidic

• basic (or alkaline)

• neutral

• ionic

A chemical reaction between an acid and a base, forming a salt and water is known as ____.

• ionization

• concentration

• neutralization

• animation

Equal amounts of an acid and a base are mixed in a beaker. When neutralization is complete, what is in the beaker besides salt?

• acid only

• base only

• water

Tags

NGSS.MS-PS1-5

Which type of ions are produced by bases when they are mixed with water?

• OH^-

• H⁺

• H₂O

• HCl

Tags

NGSS.MS-PS1-2

True or false: a neutral solution has equal amounts of H⁺ and OH^-.

• True

• False

The pH scale is used to determine the strength of

• acids and bases

• chemical bonds

• electrical charges

• particles in a solution

Neutralization reactions

• formed from joining positive and negative ions

• increases OH ions

• forms a salt and water

• increases H2O ions

What does pH measure?

• strength of an acid

• strength of a base

• strength of both acids and bases

• concentration of H+ ions

Predict the products of this reaction.

HCl + Ca(OH)2

• NaCl

• CaCl2

• CaCl2 + H2O

• H2O

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-1