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|When an AQUEOUS solution containing a dissolved salt is ELECTROLYSED, the ions created are…||[Salt cation]⁺, [Salt anion]⁻, H⁺ and OH⁻|
|ELECTROLYSIS is so useful because…||PURE metals can be extracted from their ores|
|The reaction 2LiAlH₄ + Ca → Ca(AlH₄)₂ + 2Li is ---(1)---, because lithium is ---(2)--- reactive than calcium.||1: impossible; 2: more|
|UNIVERSAL INDICATOR will be what colour in a solution with pH 9?||Blue|
|Here are four steps that show an acid-alkali TITRATION starting with a SOLUTION. Which happens FIRST?||Using a safety pipette filler, TRANSFER the solution of UNKNOWN concentration to a CONICAL FLASK|
|A metal that EXPLODES on contact with water is said to be…||very reactive|
|The particular SALT produced in a reaction between ACID and BASE or ALKALI depends on the ---(1)--- of the acid and the ---(2)--- of the base/alkali.||1: negative ion; 2: positive ion|
|The general equation for a NEUTRALISATION reaction is…||H⁺(aq) + OH⁻(aq) → H₂O(l)|
|The ACIDITY of a solution is affected by the concentration of OH- ions in the solution. The HIGHER the concentration of OH⁻ ions in the solution…||the HIGHER the pH|
|Metal species such as FeO, Al₂O₃, CaCl₂ and Au exist in the earth. The UNREACTIVE metal is…||Au|
|When METALS react with ACIDS, one of the things they produce is…||a SALT solution|
|In order to REDUCE COST in the extraction of aluminium, aluminium oxide is dissolved in…||molten cryolite|
|More REACTIVE metals, such as aluminium, are EXTRACTED from their ORES using…||electrolysis|
|Indicators used in TITRATION…||should have a clear colour change at the END POINT of the neutralisation|
|CARBON or CARBON MONOXIDE is used to separate LESS REACTIVE metals from their ores through a process called…||REDUCTION|
|Here are four steps that show how to work out the CONCENTRATION of an NaOH solution that has been neutralised by a given volume of HCl. Which happens THIRD?||Work out the concentration of the NaOH solution|
|Less REACTIVE metals, such as iron, are EXTRACTED from their ORES using…||reduction|
|Here are four steps that show how to work out the CONCENTRATION of an NaOH solution that has been neutralised by a given volume of HCl. Which happens LAST?||Iron|
|In the ELECTROLYSIS of aqueous/molten COPPER SULFATE, what ionic half equation occurs at the CATHODE?||Cu²⁺(aq) + 2e⁻ → Cu(s)|
|Which of these statements regarding the EXTRACTION of ALUMINIUM using ELECTROLYSIS is FALSE?||The molten component consists ONLY of CRYOLITE|
|Which of these statements regarding ELECTROLYSIS is FALSE?||All three statements are FALSE|