Base

What kind of charge is on hydrogen atoms?

• positive

• negative

• north

• south

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

• 7

• 0

• 14

• 1

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

What is the product of a neutralization reaction between an acid and a base?

• Salt and water

• Hydrogen gas

• Oxygen gas

• Carbon dioxide

Which of the following is a weak base?

• Sodium hydroxide

• Potassium hydroxide

• Ammonia

• Calcium hydroxide

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

• Proton donor

• Proton acceptor

• Electron donor

• Electron acceptor

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 pH range of basic solutions?

• 0-7

• 7-14

• 0-14

• 7