1517847
Beschreibung
Quiz von Rebecca Ryder, aktualisiert more than 1 year ago
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Erstellt von Rebecca Ryder
vor etwa 10 Jahre
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Frage 1
Frage
What is the charge and mass of an electron
Antworten
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charge=+1 mass=1
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charge=-1 mass=1
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charge=-1 mass=1/2000
Frage 2
Frage
Which ones are the correct state symbols?
Antworten
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Solid - s
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Liquid - lq
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Gas - g
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Aqueous - a
Frage 3
Frage
What do ionic bonds form?
Antworten
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Ion
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Element
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Compound
Frage 4
Frage
What happens to electrons in ionic bonding?
Antworten
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a metal loses electron(s) and a non-metal gains electron(s).
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a metal gains electron(s) and a non-metal loses electron(s).
Frage 5
Frage
In ionic bonding, which charged particles attract?
Antworten
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positive with positive
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negative with negative
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positive with negative
Frage 6
Frage
What are the correct properties of giant ionic compounds?
Antworten
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it conducts as a liquid and as a solid as the electrons are free to move
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they are very brittle and break when hit
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they have extremely low melting points due to lots of bonds
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they are soluble in water
Frage 7
Frage
NH3 is ammonia
Antworten
- True
- False
Frage 8
Frage
compounds such as carbon dioxide (CO2), chlorine (Cl2) and water (H2O) are called simpelr molecular compounds.
Antworten
- True
- False
Frage 9
Frage
what are the correct properties of a simple covalent compounds
Antworten
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low melting point
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strong covalent bonds between atoms
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strong intermolecular forces
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doesn't take a lot of energy to break the bonds
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not usually a gas
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no electrical conductivity
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doesn't conduct as a solid or liquid but does conduct as a gas
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there are no charged particles
Frage 10
Frage
Diamond is made up of carbon atoms. Each carbon atom has four strong bonds and is very hard.
Antworten
- True
- False
Frage 11
Frage
diamond is a simple covalent structure
Antworten
- True
- False
Frage 12
Frage
Does diamond have a low or high melting point?
Antworten
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Low melting point
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High melting point
Frage 13
Frage
diamond can conduct electricity
Antworten
- True
- False
Frage 14
Frage
Tick the correct statements in reference to Graphite
Antworten
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made up of carbon atoms
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has 5 strong bonds
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atoms form layers
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contains delocalised electrons
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the delocalised electrons are not free to move
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cannot conduct electricity
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layers can slide over each other
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graphite is soft
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low melting point
Frage 15
Frage
metals are soft and malleable
Antworten
- True
- False
Frage 16
Frage
metals are weak
Antworten
- True
- False
Frage 17
Frage
they are good conductors of electricity
Antworten
- True
- False
Frage 18
Frage
they are poor conductors of heat
Antworten
- True
- False
Frage 19
Frage
what is an alloy?
Antworten
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a pure metal
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a mixture of metals
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a mixture of metals and non-metals
Frage 20
Frage
a metallic bond is the bonding of the free electrons in metals.
Antworten
- True
- False
Frage 21
Frage
the attraction is between neutral metal ions and delocalised electrons
Antworten
- True
- False
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