Acid & Base Review

An acid has a pH

• higher than 7

• lower than 7

• 7

• greater than 14

lemon juice is a

• acid

• base

Human blood has a pH between 7.35 and 7.45. Which of the following best describes human blood?

• strongly acidic
• slightly acidic
• strongly basic
• slightly basic

Tags

NGSS.MS-PS1-2

Which is NOT a property of acids?

• slippery

• pH below 7

• react with metals

• contain H¹⁺ ions

Which is NOT a property of bases?

• caustic

• slippery

• pH below 7

• bitter

What is "neutralization"?

• Compound formed by a metal and a nonmetal
• The reaction between an acid and a base which produces a salt and water
• A chemical whose color changes in the presence of acids and bases
• To decrease the amount of solute as compared to the amount of solvent in a solution

What is the purpose of an "indicator"?

• changes color if a chemical reaction occurs

• changes color if a physical change occurs

• changes color in the presence of an acid or base

• changes color when a salt dissolves in water

The table shows the pH of several solutions. Which solution has the greatest concentration (amount) of H⁺ ions?

• vinegar

• milk

• water

• bleach

Pollution causes the pH of rain water fall below 6. What is such type of rain called?

• Acid rain
• polluted rain
• low pH rain

Tags

NGSS.MS-LS2-4

What technique is shown in this image?

• filtration

• buretting

• indicating

• titration