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GCSE4 Reaction Acid

AQA GCSE Chapter 05 (part 2) reactions of acids

QuestionAnswer
How do you work out the formula of Calcium Chloride CHARGES: Calcium is +2 ion as it is in group 2; Chloride is -1 ion as it is in group 7; SWAP: Ca1Cl2
How do you work out the formula of Magnesium Nitrate CHARGES: Magnesium is +2 ion as it is in group 2; Nitrate is (NO3)-1 ion LEARN; SWAP: Mg1(NO3)2
How do you work out the formula of Copper(II) Sulfate CHARGES: Copper is +2 ion as indicated by (II); sulfate is (SO4)-2 LEARN; SWAP: Cu2(SO4)2; and cancel both ā€œ2sā€
What happens when there is excess Hydrochloric acid in the stomach? Indigestion
What is the name of the technique used to find out EXACTLY how much alkali there is in an indigestion tablet? Titration
What is the salt made when Sodium Hydroxide reacts with Sulphuric Acid? Work out the formula of the salt Sodium Sulphate; find out charges from Periodic table or LEARN special groups: Na+1 and (SO4)-2; then swap numbers Na2(SO4)
What is the salt made when Calcium Hydroxide reacts with Nitric Acid? Work out the formula of the salt Calcium Nitrate; find out charges from Periodic table or LEARN special groups: Ca+2 and (NO3)-1; then swap numbers Ca(NO3)2
What is the salt made when Potassium Hydroxide reacts with Hydrochloric Acid? Work out the formula of the salt Potassium Chloride; find out charges from Periodic table or LEARN special groups: K+1 and Cl-1; then swap numbers K1Cl1
What is the salt made when Potassium Carbonate reacts with Sulphuric Acid? Work out the formula of the salt Potassium Sulphate; find out charges from Periodic table or LEARN special groups: K+1 and (SO4)-2; then swap numbers K2(SO4)
What is the acid needed to make Potassium Sulphate? What is the formula of this acid Sulphuric Acid; H2SO4
What is the acid needed to make Potassium Nitric? What is the formula of this acid Nitric Acid; HNO3
What is the acid needed to make Potassium Chloride? What is the formula of this acid Hydrochloric Acid HCl
Name the acid found in the stomach Hydrochloric acid
What is the TWO roles of Hydrochloric acid in the stomach? help digestion and kill bacteria
What kind of chemicals are chemicals that help remedy indigestion? Alkalis
What are the two gases made when water is electrolysed? Hydrogen and Oxygen
What is the test for Hydrogen gas? pops when in contact with a lighted splint
What is the name of the process where a compound is split by passing electricity through the compound? electrolysis
What is the chemical test for Chlorine gas? Turns litmus paper red before bleaching the litmus paper
What is the formula of Nitric Acid? HNO3
What is the formula of Sulfuric Acid? H2SO4
What is the formula for HydroChloric Acid? HCl
What is the word equation for the reaction between dilute sulfuric acid and Zinc Oxide? Sulfuric Acid + Zinc Oxide --> Zinc Sulfate + Water (do not get fooled by "dilute": it is simply water; it does not react)
What is the word equation for the reaction between dilute sulfuric acid and Zinc Carbonate? Sulfuric Acid + Zinc Carbonate --> Zinc Sulfate + Water + Carbon Dioxide (do not get fooled by "dilute": it is simply water; it does not react)
What is the word equation for the reaction between dilute sulfuric acid and Zinc? Sulfuric Acid + Zinc Oxide --> Zinc Sulfate + Hydrogen (do not get fooled by "dilute": it is simply water; it does not react)
Define electrolysis When a COMPOUND is split/broken down into its ELEMENTS, when electricity is passed through the compound [Have you used the correct keywords]
What are the two products formed when you react an ACID with a metal OXIDE? a salt (the name of the salt is the first word of the acid and the metal) and WATER
What are the two products formed when you react an ACID with a metal HYDROXIDE? a salt (the name of the salt is the first word of the acid and the metal) and WATER
What are the two products formed when you react an ACID with a metal? a salt (the name of the salt is the first word of the acid and the metal) and HYDROGEN
What are the two products formed when you react an ACID with a metal CARBONATE? a salt (the name of the salt is the first word of the acid and the metal) and WATER and CARBON DIOXIDE
What type of chemical reacts with an Acid to produce Water? either a Metal Oxide or a Metal Hydroxide
What type of chemical reacts with an Acid to produce Hydrogen gas? a (reactive) metal
What type of chemical reacts with an Acid to produce Water and Carbon Dioxide gas? a metal Carbonate
name a plastic containing Chlorine PVC (aka PolyChloroEthene, aka PolyVinylChloride)
Give 2 reasons why we need HydroChloric acid in our stomach To digest food and to kill bacteria
Why do we pass gases from chemical industry through Calcium Carbonate To neutralise (1) the acidic gases (1)
What is the name of the reaction between an acid and a carbonate? Neutralisation
What type of chemical is an antiacid? An alkali
What is the word equation for the reaction between dilute Nitric acid and Calcium? Calcium + Nitric acid --> Calcium Nitrate + Hydrogen
Balance the following equation ___Ca + ___HNO3 --> ___Ca(NO3)2 + ___H2 1 Ca + 2 HNO3 --> 1 Ca(NO3)2 + 1 H2
HIGHER: What is the ionic equation for 1 Ca + 2 HNO3 --> 1 Ca(NO3)2 + 1 H2 1 Ca + 2 H+1 --> 1 Ca+2 + 1 H2
What is the word equation for the reaction between dilute Nitric acid and Calcium Hydroxide? Calcium Hydroxide + Nitric acid --> Calcium Nitrate + Water
Balance the following equation ___Ca(OH)2 + ___HNO3 --> ___Ca(NO3)2 + ___H2O 1 Ca(OH)2 + 2 HNO3 --> 1 Ca(NO3)2 + 1 H2O
What is the word equation for the reaction between dilute Nitric acid and Magnesium Carbonate? Magnesium Carbonate + Nitric acid --> Magnesium Nitrate + Water + Carbon Dioxide
Balance the following equation ___Mg(CO3) + ___HNO3 --> ___Mg(NO3)2 + ___H2O + __CO2 1 Mg(CO3) + 2 HNO3 --> 1 Mg(NO3)2 + 1 H2O + 1 CO2
What is the word equation for the reaction between dilute Hydrochloric acid and Calcium? Calcium + Hydrochloric acid --> Calcium Chloride + Hydrogen
Balance the following equation ___Ca + ___HCl --> ___CaCl2 + ___H2 1 Ca + 2 HCl --> 1 CaCl2 + 1 H2
What is the word equation for the reaction between dilute Hydrochloric acid and Calcium Hydroxide? Calcium Hydroxide + Hydrochloric acid --> Calcium Chloride + Water
Balance the following equation ___Ca(OH)2 + ___HCl ļƒ  ___CaCl2 + ___H2O 1 Ca(OH)2 + 2 HCl --> 1 CaCl2 + 1 H2O
What is the word equation for the reaction between dilute Hydrochloric acid and Calcium Carbonate? Calcium Carbonate + Hydrochloric acid --> Calcium Chloride + Water + Carbon Dioxide
Balance the following equation ___CaCO3 + ___HCl --> ___CaCl2 + ___H2O + ___ CO2 1 Ca(OH)2 + 2 HCl --> 1 CaCl2 + 1 H2O + 1 CO2
You are given solutions of sodium hydroxide and ammonia of the same concentration. Describe and give the results of a test to show that sodium hydroxide is a stronger alkali than ammonia solution Add universal indicator; ammonia would go blue (pH of 9or10) whilst sodium hydroxide go purple (pH=12to14) OR (TRIPLE ONLY) do a titration with HCl; you would need more HCl for Sodium Hydroxide
TRIPLE ONLY: Sodium hydroxide is a strong alkali. In terms of ionisation, what is meant by the word strong? A STRONG alkali (or acid) is TOTALLY dissociated
Name or give the formula of the ion that makes solutions alkaline. Hydroxide ions (OH)-1
Name or give the formula of the ion that makes solutions acidic Hydrogen ions (H)+1
Describe how you would collect pure dry crystals of Copper Sulphate from Sulfuric acid and Copper Oxide Warm the Sulfuric acid; Add Copper Oxide to Sulfuric Acid; until Copper Oxide does not dissolve anymore; filter the excess of Copper Oxide; place the solution in an oven
(HIGHER) What is the ionic equation for the reaction between an acid and an alkali H+ + OH- ---> H2O
Which ion causes a solution to be pH 3? the solution is acidic; the ion that causes solutions to be acidic is H+
When collecting pure dry crystals of Copper Sulphate from Sulfuric acid and Copper Oxide, why do you need to warm up the Sulfuric acid? to speed up the reaction
When collecting pure dry crystals of Copper Sulphate from Sulfuric acid and Copper Oxide, why is Copper Oxide until no more dissolve? to ensure that copper oxide is IN EXCESS; to ensure that all the Sulfuric acid has reacted
When collecting pure dry crystals of Copper Sulphate from Sulfuric acid and Copper Oxide, why do you need to filter the Copper Oxide to remove the EXCESS of copper oxide
How would the pH change when Copper Oxide is added to Sulfuric acid? the pH would go from 1 to 7 because the acid would be slowly neutralised; it would not go up further because Copper oxide does not dissolve in water
(HIGHER) What is a weak acid? Give an example an acid that is partially dissociate: Ethanoic Acid dissociates only partly into Ethanoate ions and Hydrogen ions
(HIGHER) What is a strong acid? Give an example an acid that is completely dissociated: Sulfuric Acid dissociates only partly into Sulfate ions and Hydrogen ions
(HIGHER) What happens to the pH when you dilute a solution of a strong acid 10 times? The pH will increase by 1 unit
Created by: ursulinechem2