Base

The water molecules are arranged

• by size

• with opposites away from each other

• with opposites next to each other

• randomly

Tags

NGSS.MS-PS1-1

What is the pH of a neutral solution at 25°C?

• 7

• 0

• 14

• 7.5

Which of the following is a characteristic of a base?

• Sour taste

• Turns red litmus blue

• Reacts with metals to produce hydrogen gas

• Turns blue litmus red

What is the chemical formula for sodium hydroxide, a common base?

Which of the following is an example of a strong base?

• Ammonia

• Sodium hydroxide

• Acetic acid

• Water

In the reaction between hydrochloric acid and sodium hydroxide, what is the salt formed?

• Sodium chloride

• Potassium chloride

• Calcium chloride

• Magnesium chloride

What is the role of a base in a neutralization reaction?

• To donate protons

• To accept protons

• To donate electrons

• To accept electrons

Which of the following is a property of bases?

• They feel slippery

• They taste sour

• They are corrosive to metals

• They turn blue litmus red

What is the conjugate acid of the base ammonia (NH3)?

Which of the following bases is used in the production of soap?

• Sodium hydroxide

• Calcium hydroxide

• Ammonium hydroxide

• Magnesium hydroxide