Acids and Bases

Which of the following is an acid-base reaction?

• 2H₂ + Cl₂ →2HCL
• 2H₂ + O₂ → 2H₂O
• HNO₃ + NaOH → H₂O + NaNO₃

Which of the following is NOT a property of acids?

• Taste sour
• Conduct electricity
• Release OH- ions in water
• React with metals

Which of the following is true of bases?

• Release H+ ions in water
• Turn blue litmus red
• Turn red litmus blue
• Has pH lower than 7

The pH of a strong acid would most likely be --

• pH 1
• pH 6
• pH 9
• pH 14

Which characteristic do both acids and bases have in common?

• They taste bitter.
• They conduct electricity.
• They react strongly with metals.
• They turn litmus paper red.

An acid can be neutralized by mixing it with -- 

• water
• a weaker acid
• salt
• a base

Tags

NGSS.MS-PS1-5

Which of the following would NOT be an example of a base?

• soap
• vinegar
• ammonia
• bleach

A compound that changes color when in contact with an acid or a base is called --

• a base
• an indicator
• an ion
• a salt

On the pH scale, numbers from 8-14 are considered --

• acids
• bases
• neutral