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

10jonty.bird
Quiz by 10jonty.bird, updated more than 1 year ago
10jonty.bird
Created by 10jonty.bird over 6 years ago
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Description

C3 test

Resource summary

Question 1

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

Question 2

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

Question 3

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

Question 4

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

Question 5

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

Question 6

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

Question 7

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

Question 8

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

Question 9

Question
Carbonates react with what to form CO2.
Answer
  • Weak acids
  • Weak alkaline
  • Strong acids
  • Strong alkaline

Question 10

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

Question 11

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

Question 12

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

Question 13

Question
Ethanol is oxidised to
Answer
  • Ethanoic Acid
  • Ethyl ethanoate
  • Ethene
  • Methane
  • Alcohol

Question 14

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

Question 15

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

Question 16

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

Question 17

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

Question 18

Question
Carboxylic acids do not ionise completely when dissolved in water.
Answer
  • True
  • False

Question 19

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