Difficult C3 quiz - all the stuff I didn't know

Beschreibung

C3 test
10jonty.bird
Quiz von 10jonty.bird, aktualisiert more than 1 year ago
10jonty.bird
Erstellt von 10jonty.bird vor mehr als 9 Jahre
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2

Zusammenfassung der Ressource

Frage 1

Frage
Temporary hard water contains . . . . ions, these decompose to form carbonate ions.
Antworten
  • hydrogen
  • Carbon
  • Magnesium
  • Hydrogencarbonate
  • Calcium

Frage 2

Frage
Permanent hard water can be made soft by:
Antworten
  • Ion exchange tower
  • Adding sodium carbonate
  • Mixing it with lather
  • Boiling it

Frage 3

Frage
Water filters contain . . ., . . ., and (. . . exchange resins) can improve the taste of the water. (only last unknown applies to the exchange resins.)
Antworten
  • Magnesium
  • Carbon
  • Silver
  • Water
  • Boron
  • Ion

Frage 4

Frage
In the equation Q = mc ΔT. What does the m stand for?
Antworten
  • Mass of liquid heated
  • Specific head capacity of the liquid
  • Energy transferred
  • Number of moles

Frage 5

Frage
In the equation Q = mc ΔT. What does the c stand for?
Antworten
  • Mass of liquid heated
  • Final temperature
  • Specific heat capacity of the liquid
  • Change in time

Frage 6

Frage
What provides a different pathway for a chemical reaction that has a lower activation energy?
Antworten
  • Carbonates
  • Increase in pressure
  • Increase in temperature
  • Catalysts

Frage 7

Frage
Aluminium, Calcium and Magnesium react with what to from a white precipitate?
Antworten
  • Carbon hydroxide solution
  • Silver nitrate solution
  • Sodium hydroxide solution
  • barium hydroxide solution

Frage 8

Frage
What is the ONLY precipitate that dissolves in excess sodium hydroxide solution
Antworten
  • Calcium hydroxide
  • Aluminium hydroxide
  • Copper hydroxide
  • Magnesium hydroxide
  • Titanium hydroxide

Frage 9

Frage
Carbonates react with what to form CO2.
Antworten
  • Weak acids
  • Weak alkaline
  • Strong acids
  • Strong alkaline

Frage 10

Frage
Halide Ions + what + what makes precipitates (of varying colours)
Antworten
  • Barium Nitrate Solution
  • Sodium hydroxide solution
  • Strong Acid
  • Silver nitrate solution
  • Nickel catalyst
  • Weak Acid
  • Oxygen

Frage 11

Frage
Methanol, Ethanol and Propanol dissolve in water to form a solution that is . . .
Antworten
  • Strongly Acidic
  • Neutral
  • Strongly alkaline
  • Weakly acidic
  • weakly alkaline

Frage 12

Frage
Methanol, Ethanol and Propanol also react with . . . . to produce . . . . gas.
Antworten
  • CO2
  • Sodium hydroxide solution
  • Ethanoic acid
  • Oxygen
  • Potassium
  • Sodium
  • Hydrogen
  • Iron (II)

Frage 13

Frage
Ethanol is oxidised to
Antworten
  • Ethanoic Acid
  • Ethyl ethanoate
  • Ethene
  • Methane
  • Alcohol

Frage 14

Frage
Ethanoic acid is the main acid in . . .
Antworten
  • Hydrochloric Acid
  • Citric Acid
  • Vinegar
  • Lemon Juice
  • Car Batteries

Frage 15

Frage
Carboxylic Acids dissolve in water to produce . . . . solutions
Antworten
  • Alkaline
  • Neutral
  • Acidic
  • Non-existent

Frage 16

Frage
Carboxylic Acids react with carbonates to produce . . .
Antworten
  • Carbonates of the Carboxylic variety
  • Water
  • Hydrogen
  • CO2
  • Acids

Frage 17

Frage
Carboxylic Acids react with alcohols in the presence of a(n) . . . . catalyst to produce . . . .
Antworten
  • Alcohols
  • Iron
  • Acid
  • Ethanoates
  • An acid with the functional group -COOH
  • Nickel
  • Volatile acids of which Ethyl Ethanoate is an example
  • Platinum

Frage 18

Frage
Carboxylic acids do not ionise completely when dissolved in water.
Antworten
  • True
  • False

Frage 19

Frage
What is the general formula for making esters?
Antworten
  • Methanoic acid + ethanol ⇌ methyl ethanoate + CO2
  • alcohol + oxygen ⇌ ester + CO2
  • carboxylic acid + alcohol ⇌ ester + water
  • Carboxylic acid + water ⇌ ester + alcohol
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