4035692
Descrição
Quiz por Lilac Potato, atualizado more than 1 year ago
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Criado por Lilac Potato
aproximadamente 9 anos atrás
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Questão 1
Questão
Until recently, the elements were arranged in order of their [blank_start]atomic mass[blank_end].
Responda
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atomic mass
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atomic number
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names (alphabetically)
Questão 2
Questão
What were the problems with Newlands' Law of Octaves?
Responda
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The groups contains elements that didn't have similar properties e.g. C and Ti
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He mixed up metals and non-metals e.g. O and Fe
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He didn't leave any gaps for undiscovered elements
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They weren't arranged in order of atomic mass
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They went against the Church
Questão 3
Questão
Group 1 metals become [blank_start]more[blank_end] reactive as you go down the group because the outer electron is more easily lost as it's further from the nucleus.
Responda
-
more
-
less
Questão 4
Responda
-
Fluorine
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Chlorine
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Bromine
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Iodine
Questão 5
Questão
Transition metals are less reactive, denser, stronger and harder than Group 1 metals
Responda
- True
- False
Questão 6
Questão
Permanent hardness is caused by [blank_start]calcium sulphate[blank_end].
Responda
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calcium sulphate
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hydrogencarbonate ions
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sodium hydroxide
Questão 7
Questão
Which of these is the order water is treated in?
Responda
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Screening, removal of solids and microbes, filtration and chlorination
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Filtration, screening, chlorination, removal of solids and microbes
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Removal of solids and microbes, filtration, chlorination and screening
Questão 8
Questão
Equilibrium means the amounts of reactants and products reach a certain balance and stay there.
Responda
- True
- False
Questão 9
Questão
If you raise the pressure, it will encourage the reaction which produces [blank_start]less[blank_end] volume.
Responda
-
less
-
more
Questão 10
Questão
What conditions are needed for the Haber Process?
Responda
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Pressure: 200 atm
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Temperature: 450 degrees C
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Catalyst : Iron
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Pressure: 900 atm
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Temperature: 20 degrees C
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Catalyst: Magnesium
Questão 11
Questão
Alcohols have the functional [blank_start]-OH[blank_end] group.
Responda
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-OH
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-COOH
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-COO-
Questão 12
Questão
The first 3 alcohols...
Responda
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Dissolve completely in water to form neutral solutions
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React with sodium to give hydrogen & alkoxides
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React with carboxylic acids to form an ester + water
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Don't react with anything
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Are used as fuels and solvents
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Are poisonous
Questão 13
Questão
Carboxylic acids don't ionise completely (release H+ ions) and so form [blank_start]weak acidic[blank_end] solutions.
Responda
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weak acidic
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strong acidic
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weak alkaline
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strong alkaline
Questão 14
Questão
How do you work out concentration?
Responda
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Moles / Volume
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Moles * Volume
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Mass / Relative Formula Mass
Questão 15
Questão
In an exothermic reaction, the energy released in bond formation is [blank_start]greater[blank_end] than the energy used in breaking old bonds.
Responda
-
greater
Questão 16
Questão
What are the problems with using hydrogen fuel cells?
Responda
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Hydrogen is gas - takes up more space to store
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It's very explosive - difficult to store safely
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Hydrogen fuel is usually made from hydrocarbons or electrolysis of water - fossil fuels & electricity
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They produce pollutants
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They don't produce much power
Questão 17
Questão
Aluminium hydroxide is a white precipitate at first but redissolves in excess NaOH to form a [blank_start]colourless[blank_end] solution.
Responda
-
colourless
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pink
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blue
Questão 18
Questão
To test for halide ions, add dilute nitric acid followed by [blank_start]silver nitrate solution[blank_end].
Responda
-
silver nitrate solution
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dilute hydrochloric acid
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barium chloride solution
Questão 19
Questão
To test for a sulphate ion, add dilute HCl followed by [blank_start]barium chloride solution[blank_end].
Responda
-
barium chloride solution
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silver nitrate solution
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nitric acid
Questão 20
Questão
A more reactive halogen can displace a less reactive halogen from an aqueous solution of its salt.
Responda
- True
- False
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