2629336
Description
Quiz by 10jonty.bird, updated more than 1 year ago
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Created by 10jonty.bird
almost 9 years ago
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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
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Adding sodium carbonate
-
Mixing it with lather
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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
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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
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carboxylic acid + alcohol ⇌ ester + water
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Carboxylic acid + water ⇌ ester + alcohol
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