Acid reactions

Question 1

Acid characteristics

Answer 1

all contain at least one hydrogen ion, has a sour taste, conducts electricity when mixed with water, can neutralise bases and reacts with many metals

Question 2

difference between weak and strong acids

Answer 2

weak acid do not easily give away hydrogen ions unlike strong acids making them corrosive

Question 3

acid examples

Answer 3

vinegar, soft drink, hydrochloric acid HCI, nitrate acid and sulfuric acid

Question 4

Bases characteristics

Answer 4

have a bitter taste, have a soapy feel to them, and bases that dissolve in water are called alkalis

Question 5

different between strong bases and weak bases

Answer 5

weak bases are generally found in household cleaning products and strong bases are caustic and very harmful

Question 6

bases example

Answer 6

sodium hydroxide, potassium hydroxide and barium hydroxide

Question 7

define salt

Answer 7

molecules that contain a metal cation and a non metal anion

Question 8

acid reacting with bases

Answer 8

when acids and bases react they neutralise each other to form salt and water

Question 9

acid reacting with bases example

Answer 9

hydrochloric acid + sodium hydroxide - sodium chloride + water

Question 10

acid reacting with metal carbonates

Answer 10

water is produced so this is also called a neutral reaction, acid + carbonate - salt + water + carbon dioxide

Question 11

acid reacting with metal carbonates example

Answer 11

citric acid + sodium bicarbonate - Sodium citrate + water + carbon dioxide

Question 12

acid reacting with metal

Answer 12

when acids react with metals they produce hydrogen and salt and create a corrosion reaction

Question 13

acid reacting with metal example

Answer 13

hydrochloric acid + magnesium - magnesium chloride + hydrogen

Question 14

what does the pH tell us

Answer 14

a measure of the concentration of hydrogen ions in a solution