2629336
Descrição
Quiz por 10jonty.bird, atualizado more than 1 year ago
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Criado por 10jonty.bird
mais de 9 anos atrás
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Questão 1
Questão
Temporary hard water contains . . . . ions, these decompose to form carbonate ions.
Responda
-
hydrogen
-
Carbon
-
Magnesium
-
Hydrogencarbonate
-
Calcium
Questão 2
Questão
Permanent hard water can be made soft by:
Responda
-
Ion exchange tower
-
Adding sodium carbonate
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Mixing it with lather
-
Boiling it
Questão 3
Questão
Water filters contain . . ., . . ., and (. . . exchange resins) can improve the taste of the water. (only last unknown applies to the exchange resins.)
Responda
-
Magnesium
-
Carbon
-
Silver
-
Water
-
Boron
-
Ion
Questão 4
Questão
In the equation Q = mc ΔT. What does the m stand for?
Responda
-
Mass of liquid heated
-
Specific head capacity of the liquid
-
Energy transferred
-
Number of moles
Questão 5
Questão
In the equation Q = mc ΔT. What does the c stand for?
Responda
-
Mass of liquid heated
-
Final temperature
-
Specific heat capacity of the liquid
-
Change in time
Questão 6
Questão
What provides a different pathway for a chemical reaction that has a lower activation energy?
Responda
-
Carbonates
-
Increase in pressure
-
Increase in temperature
-
Catalysts
Questão 7
Questão
Aluminium, Calcium and Magnesium react with what to from a white precipitate?
Responda
-
Carbon hydroxide solution
-
Silver nitrate solution
-
Sodium hydroxide solution
-
barium hydroxide solution
Questão 8
Questão
What is the ONLY precipitate that dissolves in excess sodium hydroxide solution
Responda
-
Calcium hydroxide
-
Aluminium hydroxide
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Copper hydroxide
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Magnesium hydroxide
-
Titanium hydroxide
Questão 9
Questão
Carbonates react with what to form CO2.
Responda
-
Weak acids
-
Weak alkaline
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Strong acids
-
Strong alkaline
Questão 10
Questão
Halide Ions + what + what makes precipitates (of varying colours)
Responda
-
Barium Nitrate Solution
-
Sodium hydroxide solution
-
Strong Acid
-
Silver nitrate solution
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Nickel catalyst
-
Weak Acid
-
Oxygen
Questão 11
Questão
Methanol, Ethanol and Propanol dissolve in water to form a solution that is . . .
Responda
-
Strongly Acidic
-
Neutral
-
Strongly alkaline
-
Weakly acidic
-
weakly alkaline
Questão 12
Questão
Methanol, Ethanol and Propanol also react with . . . . to produce . . . . gas.
Responda
-
CO2
-
Sodium hydroxide solution
-
Ethanoic acid
-
Oxygen
-
Potassium
-
Sodium
-
Hydrogen
-
Iron (II)
Questão 13
Questão
Ethanol is oxidised to
Responda
-
Ethanoic Acid
-
Ethyl ethanoate
-
Ethene
-
Methane
-
Alcohol
Questão 14
Questão
Ethanoic acid is the main acid in . . .
Responda
-
Hydrochloric Acid
-
Citric Acid
-
Vinegar
-
Lemon Juice
-
Car Batteries
Questão 15
Questão
Carboxylic Acids dissolve in water to produce . . . . solutions
Responda
-
Alkaline
-
Neutral
-
Acidic
-
Non-existent
Questão 16
Questão
Carboxylic Acids react with carbonates to produce . . .
Responda
-
Carbonates of the Carboxylic variety
-
Water
-
Hydrogen
-
CO2
-
Acids
Questão 17
Questão
Carboxylic Acids react with alcohols in the presence of a(n) . . . . catalyst to produce . . . .
Responda
-
Alcohols
-
Iron
-
Acid
-
Ethanoates
-
An acid with the functional group -COOH
-
Nickel
-
Volatile acids of which Ethyl Ethanoate is an example
-
Platinum
Questão 18
Questão
Carboxylic acids do not ionise completely when dissolved in water.
Responda
- True
- False
Questão 19
Questão
What is the general formula for making esters?
Responda
-
Methanoic acid + ethanol ⇌ methyl ethanoate + CO2
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alcohol + oxygen ⇌ ester + CO2
-
carboxylic acid + alcohol ⇌ ester + water
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Carboxylic acid + water ⇌ ester + alcohol
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