Acids and Bases Revision Sheet Name: _____________________ Date: __________ Not In Order Question 1 In Order Lemon juice Rewrite the following substances in Water order from lowest pH at the top to Toothpaste highest pH at the bottom. Dishwashing Liquid Stomach Acid Question Two Fill in the gaps Acids and Bases forming _ _ _ _ _ _ _ _ _ _ each other when mixed, _ _ _ _ _ and _ _ _ _ . If the base is a carbonate it will also produce _____ _______. Question Three Suggest at least one way that you could test for an acid or a base. What would you do and what would happen as a result? _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ ______________________________________________________________ Acids and Bases Revision Sheet Question Four James was dared into eating a whole tube of toothpaste. Toothpaste contains calcium carbonate (CaCO3) which is a strong base. Minutes later James felt really bloated and he could feel a burning pain in his chest. What has happened to the pH inside James’ stomach? _______________________________________________________________ _______________________________________________________________ Why do you think James felt bloated? Think about what products have been formed. _______________________________________________________________ ___________________________________________________________ BONUS QUESTION!!!! Write out the chemical equation for the Calcium Carbonate (CaCO3) mixing with James’ stomach acid (HCl) _______________________________________________________________ ___________________________________________________________ What questions do you still have on acids and bases and acids and metals? Acids and Bases Revision Sheet Name: _____________________ Date: __________ Not In Order In Order Lemon juice Stomach acid Rewrite the following substances in Water Lemon juice order from lowest pH at the top to Toothpaste Water highest pH at the bottom. Dishwashing Liquid Toothpaste Stomach Acid Dishwashing liquid Question 1 Question Two Fill in the gaps Acids and Bases forming _ _ _ _ _ _ _ _ _ _ each other when mixed, _ _ _ _ _ and _ _ _ _ . If the base is a carbonate it will also produce _____ _______. Neutralise, water, salt, carbon dioxide Question Three Suggest at least one way that you could test for an acid or a base. What would you do and what would happen as a result? Brief and accurate description of what to expect when using a particular indicator. _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ ______________________________________________________________ Acids and Bases Revision Sheet Question Four James was dared into eating a whole tube of toothpaste. Toothpaste contains calcium carbonate (CaCO3) which is a strong base. Minutes later James felt really bloated and he could feel a burning pain in his chest. What has happened to the pH inside James’ stomach? _______________________________________________________________ _______________________________________________________________ o The pH would increase / it would become more basic / it would neutralise Why do you think James felt bloated? Think about what products have been formed. _______________________________________________________________ ___________________________________________________________ o Gas bubbles, more specifically carbon dioxide, has been produced BONUS QUESTION!!!! Write out the chemical equation for the Calcium Carbonate (CaCO3) mixing with James’ stomach acid (HCl) _______________________________________________________________ ___________________________________________________________ o CaCO3 + 2(HCl) -> H2O + CO2 + CaCl What questions do you still have on acids and bases and acids and metals?