Quiz
Difficult C3 quiz - all the stuff I didn't know
Perguntas do quiz (19)
1Temporary hard water contains . . . . ions, these decompose to form carbonate ions.
- Ahydrogen
- BCarbon
- CMagnesium
- DHydrogencarbonate
- ECalcium
2Permanent hard water can be made soft by:
- AIon exchange tower
- BAdding sodium carbonate
- CMixing it with lather
- DBoiling it
3Water filters contain . . ., . . ., and (. . . exchange resins) can improve the taste of the water. (only last unknown applies to the exchange resins.)
- AMagnesium
- BCarbon
- CSilver
- DWater
- EBoron
- FIon
4In the equation Q = mc ΔT. What does the m stand for?
- AMass of liquid heated
- BSpecific head capacity of the liquid
- CEnergy transferred
- DNumber of moles
5In the equation Q = mc ΔT. What does the c stand for?
- AMass of liquid heated
- BFinal temperature
- CSpecific heat capacity of the liquid
- DChange in time
6What provides a different pathway for a chemical reaction that has a lower activation energy?
- ACarbonates
- BIncrease in pressure
- CIncrease in temperature
- DCatalysts
7Aluminium, Calcium and Magnesium react with what to from a white precipitate?
- ACarbon hydroxide solution
- BSilver nitrate solution
- CSodium hydroxide solution
- Dbarium hydroxide solution
8What is the ONLY precipitate that dissolves in excess sodium hydroxide solution
- ACalcium hydroxide
- BAluminium hydroxide
- CCopper hydroxide
- DMagnesium hydroxide
- ETitanium hydroxide
9Carbonates react with what to form CO2.
- AWeak acids
- BWeak alkaline
- CStrong acids
- DStrong alkaline
10Halide Ions + what + what makes precipitates (of varying colours)
- ABarium Nitrate Solution
- BSodium hydroxide solution
- CStrong Acid
- DSilver nitrate solution
- ENickel catalyst
- FWeak Acid
- GOxygen
11Methanol, Ethanol and Propanol dissolve in water to form a solution that is . . .
- AStrongly Acidic
- BNeutral
- CStrongly alkaline
- DWeakly acidic
- Eweakly alkaline
12Methanol, Ethanol and Propanol also react with . . . . to produce . . . . gas.
- ACO2
- BSodium hydroxide solution
- CEthanoic acid
- DOxygen
- EPotassium
- FSodium
- GHydrogen
- HIron (II)
13Ethanol is oxidised to
- AEthanoic Acid
- BEthyl ethanoate
- CEthene
- DMethane
- EAlcohol
14Ethanoic acid is the main acid in . . .
- AHydrochloric Acid
- BCitric Acid
- CVinegar
- DLemon Juice
- ECar Batteries
15 Carboxylic Acids dissolve in water to produce . . . . solutions
- AAlkaline
- BNeutral
- CAcidic
- DNon-existent
16Carboxylic Acids react with carbonates to produce . . .
- ACarbonates of the Carboxylic variety
- BWater
- CHydrogen
- DCO2
- EAcids
17Carboxylic Acids react with alcohols in the presence of a(n) . . . . catalyst to produce . . . .
- AAlcohols
- BIron
- CAcid
- DEthanoates
- EAn acid with the functional group -COOH
- FNickel
- GVolatile acids of which Ethyl Ethanoate is an example
- HPlatinum
18Carboxylic acids do not ionise completely when dissolved in water.
- AVerdadeiro
- BFalso
19What is the general formula for making esters?
- AMethanoic acid + ethanol ⇌ methyl ethanoate + CO2
- Balcohol + oxygen ⇌ ester + CO2
- Ccarboxylic acid + alcohol ⇌ ester + water
- DCarboxylic acid + water ⇌ ester + alcohol
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- C3 test
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- 10jonty.bird
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