457297
Descrição
Quiz por lauren_johncock, atualizado more than 1 year ago
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Criado por lauren_johncock
quase 11 anos atrás
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Questão 1
Questão
In solids, there are strong forces of attraction between particles, which holds them close together in fixed positions to form a regular lattice arrangement.
Responda
- True
- False
Questão 2
Questão
What can change the particles?
Responda
-
Physical changes.
-
Arrangement or energy.
Questão 3
Questão
The mass number is the total of protons and neutrons.
Responda
- True
- False
Questão 4
Questão
The atomic number tells you the number of electrons there are.
Responda
- True
- False
Questão 5
Questão
What is the relative mass of an electron?
Responda
-
1
-
1/2000
Questão 6
Questão
Giant Ionic Compounds have low melting points and boiling points.
Responda
-
True.
-
False - they have high melting and boiling points.
Questão 7
Questão
A covalent bond is a shared pair of electrons.
Responda
- True
- False
Questão 8
Questão
The formula to calculate the number of moles is Mass (in grams) of element or compound / Mr of element or compound
Responda
- True
- False
Questão 9
Questão
Why is it useful if metals are malleable?
Responda
-
They can make pretty statues.
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They can be hammered or rolled into flat sheets.
Questão 10
Questão
What is an electrolyte?
Responda
-
A liquid that can conduct electricity.
-
An anode or cathode (usually graphite bars)
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