Craville Studies
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An acid is a substance that, when in solution, produces hydronium ions A base is a substance that, when in solution, produces hydroxide ions An insoluble base is called an alkali None of the above
Electricity conduction in solution Sour or bitter taste Sting or burn the skin Slippery or soapy feel
Acid + Base = Salt + Oxygen Gas Acid + Carbonate = Salt + Water + Carbon Dioxide Gas Acid + Metal = Salt + Water All of the Above
4. Which of the following is a base?
Sugar Milk of Magnesia Vinegar Sodium Chloride
Bromothymol Blue Litmus Methyl Orange Phenolphthalein
CO, NO and N2O CO, CO2 and H2O CO and CO2 There are no exceptions
7. Which of the following factors DO NOT affect equilibrium?
Concentration Pressure Temperature Humidity
8. Given the following reaction, which of the following statements is FALSE?
Increasing the temperature will shift the equilibrium left Adding hydronium ions will shift the equilibrium left Decreasing the temperature produces more acid Increasing the pressure shifts the equilibrium right, producing more citric acid
Smelting of sulfide ores Bacterial decomposition of organic matter Bushfires Geological activity
Air pollution continued to increase until the 1920s when stringent regulations were brought in as a result of deaths Sulfur dioxide and nitrogen dioxide form ions which dissolve in water making them difficult to measure Only in the last decade has the technology become available to be able to determine the concentrations of pollution in the atmosphere The industrial revolution of the 1600s is largely to blame for increases in air pollution
It usually has a pH less than 5 It can be produced by rain dissolving oxides of sulfur and nitrogen It can do damage to statues and buildings When it falls into rivers and waterways, it has little effect as it becomes so dilute
Citric Acid Acetic Acid Ethanoic Acid Vinegar
13. The name of the acid shown below is...?
Citric Acid Acetic Acid Ethanoic Acid Both (b) and (c)
Power of Hydrogen Pure Hydrogen Potential Hydrogen Potent Hydrogen
Strong acid Weak acid Concentrated Acid Dilute Acid
Sulfur Dioxide Nitrous Oxide Lactic Acid Ascorbic Acid
17. Which scientist stated that an acid was a substance that contained replaceable hydrogen?
Antoine Lavoisier Humphrey Davy Svante Arrhenius Michael Faraday
Water Hydrogen Carbonate Hydrochloric Acid All of the above are amphiprotic
All neutralisation reactions involve proton transfer Neutralisation reactions are sometimes called proton transfer reactions Neutralisation reactions are endothermic Industrial neutralisers should be amphiprotic
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