Acids, Bases, Chemical Reactions

A student is trying to determine if a solution is acidic or basic. She does not have any litmus paper. Which would she most likely use to get a reading on her solution?

• Vinegar

• Soap

• Cabbage Juice

• Aquarium Water

Which solution has the greatest number of hydrogen ions?

• blood, pH = 7.2

• lemon juice, pH = 2

• soda, pH = 3.5

• bleach, pH = 13.5

The pH of a solution is 7. Which best describes the solution?

• The solution has more hydrogen ions than hydroxide ions.

• The solution has fewer hydrogen ions than hand soap.

• The solution has the same number of hydrogen ions as apple juice.

• The solution has the same number of hydrogen ions and hydroxide ions.

A student combined equal amounts of two solutions. One solution had a pH of 2 and the other had a pH of 12. Which would most likely be the resulting pH?

• 1

• 3

• 6

• 11

Tags

NGSS.MS-PS1-2

Hamid made this table to organize his notes on the properties of acids and bases. Which property is in the wrong column?

• taste sour

• react with carbonates

• conduct electric current

• form hydrogen gas with metals

Tags

NGSS.MS-PS1-2

Which two compounds are used in batteries?

• sulfuric acid and potassium hydroxide

• ammonium hydroxide and nitric acid

• potassium hydroxide and nitric acid

• sulfuric acid and ammonium hydroxide

While playing soccer, Carla slides across one of the lines on the field. When she stands up, what base does she dust off?

• calcium hydroxide

• ammonium hydroxide

• zinc hydroxide

• potassium hydroxide

Which substance is important in making plastics?

• zinc hydroxide

• ammonia

• acetic acid

• nitric acid

Tags

NGSS.MS-PS1-3

Which type of reaction is Mg + S → MgS?

• polymerization

• synthesis

• replacement

• decomposition

A chemical reaction that has the general formula of AB → A + B is best classified as a...

• Decomposition Reaction

• Single Replacement Reaction

• Acid and Base Reaction

• Synthesis Reaction