Understanding Acids, Bases, and Salts

What are the physical properties of acids?

• Acids are insulators and do not conduct electricity.

• Acids have a sour taste, are corrosive, conduct electricity, turn blue litmus paper red, and have a pH less than 7.

• Acids turn red litmus paper blue and have a pH greater than 7.

• Acids have a sweet taste and are non-corrosive.

How do acids react with metals?

• Acids do not react with metals at all.

• Acids react with metals to produce oxygen gas and water.

• Acids react with metals to produce hydrogen gas and a salt.

• Acids react with metals to form carbon dioxide and a base.

What is the taste of acids?

• Sweet

• Sour

• Bitter

• Savory

What are the common uses of acids in daily life?

• Textile dyes

• Common uses of acids in daily life include food preservation, cleaning agents, and personal care products.

• Construction materials

• Fuel for cars

What are the characteristics of bases?

• sour taste

• Characteristics of bases include: bitter taste, slippery feel, ability to change indicator colors, and react with acids.

• sticky texture

• ability to dissolve metals

How do bases feel to the touch?

• Bases feel warm and dry to the touch.

• Bases feel rough and gritty to the touch.

• Bases feel sticky and tacky to the touch.

• Bases feel slippery or soapy to the touch.

What is the effect of bases on indicators?

• Bases typically turn indicators blue.

• Bases make indicators yellow.

• Bases have no effect on indicators.

• Bases turn indicators red.

What are some common examples of bases?

• Ethanol

• Sodium chloride

• Sodium hydroxide, potassium hydroxide, ammonia, calcium carbonate

• Hydrochloric acid

What happens during an acid-base reaction?

• Protons are transferred from the acid to the base, forming water and a salt.

• Water is broken down into hydrogen and oxygen during the reaction.

• Acids and bases neutralize each other without any products.

• Electrons are transferred from the base to the acid, forming hydrogen gas.

What is produced when an acid reacts with a base?

• Ammonia and salt

• Hydrogen and oxygen

• Water and salt

• Carbon dioxide and water