Exploring Acids, Bases, and Salts (SC.8.P.8.8)

Which of the following is a property of acids?

• They taste bitter.

• They turn blue litmus paper red.

• They feel slippery.

• They are unreactive with metals.

Compare the properties of acids and bases. Which statement is true?

• Both acids and bases turn red litmus paper blue.

• Acids feel slippery, while bases feel rough.

• Acids taste sour, while bases taste bitter.

• Both acids and bases are unreactive with metals.

A student has a solution that turns red litmus paper blue. What can be inferred about the solution?

• It is acidic.

• It is basic.

• It is neutral.

• It is a salt solution.

Explain why NaCl is classified as a salt.

• It is formed from the reaction of an acid and a base.

• It is a strong acid.

• It is a strong base.

• It is a neutral compound.

Tags

NGSS.MS-PS1-2

A solution has a pH of 3. What does this indicate about the solution?

• It is a strong base.

• It is a weak base.

• It is a strong acid.

• It is a neutral solution.

Which of the following is a characteristic of bases?

• They taste sour.

• They turn red litmus paper blue.

• They react with metals to produce hydrogen gas.

• They have a pH less than 7.

A student mixes hydrochloric acid (HCl) with sodium hydroxide (NaOH). What type of reaction occurs?

• Decomposition

• Neutralization

• Combustion

• Synthesis

Tags

NGSS.MS-PS1-2

Which of the following is a property of salts?

• They are always acidic.

• They are always basic.

• They are formed from the reaction of an acid and a base.

• They have a pH of 0.

What is the result of mixing an acid with a base?

• A more acidic solution

• A more basic solution

• A neutral solution

• A solution with a pH of 14

Which of the following statements is true about the pH scale?

• A pH of 7 is acidic.

• A pH of 7 is basic.

• A pH of 7 is neutral.

• A pH of 7 is salty.