Acids & Metal Acids & Metal CarbonatesCarbonates

D. Crowley, D. Crowley, 20072007

Acids & Metal CarbonatesAcids & Metal Carbonates

► To know how acids react with metal carbonatesTo know how acids react with metal carbonates

Wednesday, April 19, 2023

Spot the patternsSpot the patterns

►Using the sheet, cut out all the Using the sheet, cut out all the squares to produce two word squares to produce two word equationsequations

E.g. E.g.

____ + ____ ____ + ____ → ____ + ____→ ____ + ____

____ + ____ ____ + ____ → ____ + ____→ ____ + ____

Spot the patternsSpot the patterns

► Using the sheet, cut out all the Using the sheet, cut out all the squares to produce two word equationssquares to produce two word equations

magnesiummagnesium + + hydro hydrochloricchloric acidacid → → magnesiummagnesium chloridechloride + + hydrogenhydrogen

zinczinc + + hydrohydrochloricchloric acidacid → → zinczinc chloridechloride + + hydrogenhydrogen

Metal carbonate + acidMetal carbonate + acid

►When we react a metal carbonate with When we react a metal carbonate with acid, we produce a salt, water and a acid, we produce a salt, water and a gasgas

►However, this time the gas is not However, this time the gas is not hydrogen – it is carbon dioxidehydrogen – it is carbon dioxide

metal carbonatemetal carbonate + + acidacid → → saltsalt + + waterwater + + carbon dioxidecarbon dioxide

Carbon dioxideCarbon dioxide

►How can we prove the gas given off How can we prove the gas given off is carbon dioxide, not hydrogen?is carbon dioxide, not hydrogen?

►Remember hydrogen produced a Remember hydrogen produced a squeaky pop when litsqueaky pop when lit

►A good test for carbon dioxide is A good test for carbon dioxide is to bubble it through limewater – to bubble it through limewater – the limewater will turn cloudy if the limewater will turn cloudy if carbon dioxide is presentcarbon dioxide is present

Limewater & carbon Limewater & carbon dioxidedioxide

ExperimentExperiment

► Half fill a boiling tube with waterHalf fill a boiling tube with water► Half fill a second boiling tube with limewaterHalf fill a second boiling tube with limewater► Connect the tubes together, using a delivery Connect the tubes together, using a delivery tubetube

► Then carefully add a spatula of the carbonate Then carefully add a spatula of the carbonate to the waterto the water

► Once you have done the reaction, explain how Once you have done the reaction, explain how you know a reaction took placeyou know a reaction took place

► Can you write a word equation for this Can you write a word equation for this reaction?reaction?

Metal CarbonatesMetal Carbonates

Complete the metal carbonates Complete the metal carbonates worksheet…worksheet…

Word EquationsWord Equations

metal carbonatemetal carbonate + + acidacid →→ saltsalt + + waterwater + + carbon dioxidecarbon dioxide

► See if you can complete the word equationsSee if you can complete the word equations► Can you complete the symbol equations?Can you complete the symbol equations?► (The symbols below may help, and can be used more than once)(The symbols below may help, and can be used more than once)

Na2CO3

CO2

H2O

HCl

CuCO3

CuCl2

CaCO3CaSO4

NaCl 2HCl

H2SO4

2NaCl

CuSO4

MgCl2MgCO3