14998221
Descrição
Quiz por Jeffrey Piggott, atualizado more than 1 year ago
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Criado por Jeffrey Piggott
aproximadamente 8 anos atrás
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Questão 1
Questão
What happens when a bond is formed between a green gaseous element and a soft metallic element?
Responda
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A The gas atoms gain an electron.
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B The gas atoms lose an electron.
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C The metal atoms gain an electron.
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D The two elements share a pair of electrons.
Questão 2
Questão
Solder is an alloy of lead and tin. It is used for joining pieces of metal.
Which statement about solder is correct?
Responda
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A It can be represented by a chemical formula.
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B It contains a mixture of lead and tin.
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C It contains lead and tin chemically combined.
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D It has a higher melting point than lead or tin
Questão 3
Questão
Two DIFFERENT elements form a compound.
Which diagram shows molecules of the compound?
Responda
Questão 4
Questão
Which name is given to mixtures of metals?
Responda
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A alloys
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B compounds
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C ores
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D salts
Questão 5
Questão
Potassium, K, forms a compound with fluorine, F.
Which statements about this compound are correct?
1 The compound is ionic.
2. The formula of the compound is KF.
3. The compound is soluble in water.
Responda
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A 1, 2 and 3
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B 1 and 2 only
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C 1 and 3 only
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D 2 and 3 only
Questão 6
Questão
Potassium, K, forms a compound with fluorine, F.
Which statements about this compound are correct?
1 The compound is ionic.
2 The formula of the compound is KF.
3 The compound is soluble in water.
Responda
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A 1, 2 and 3
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B 1 and 2 only
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C 1 and 3 only
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D 2 and 3 only
Questão 7
Questão
Sodium chloride is an ionic solid.
Which statement is not correct?
Responda
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A Ions are formed when atoms lose or gain electrons.
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B Ions in sodium chloride are strongly held together.
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C Ions with the same charge attract each other.
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D Sodium chloride solution can conduct electricity.
Questão 8
Questão
The electronic structures of two atoms, X and Y, are shown.
X and Y combine together to form a compound.
What is the type of bonding in the compound and what is the formula of the compound?
Image:
Q8 (binary/octet-stream)
Responda
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Image:Q9a (binary/octet-stream)
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Image:Q9b (binary/octet-stream)
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Image:Q9c (binary/octet-stream)
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Image:Q9d (binary/octet-stream)
Questão 9
Questão
The electronic structures of atoms P and Q are shown.
P and Q react to form an ionic compound.
What is the formula of the compound?
Image:
Q11 (binary/octet-stream)
Responda
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A Q7P
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B QP
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C QP3
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D QP7
Questão 10
Responda
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A
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B
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C
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D
Questão 11
Questão
The table shows the electronic structures of four atoms.
Which two atoms combine to form an ionic compound?
Image:
Q13 (binary/octet-stream)
Responda
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A W and X
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B W and Y
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C X and Y
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D X and Z
Questão 12
Questão
The element rubidium, Rb, is immediately below potassium in the Periodic Table.
It reacts with bromine to form the compound rubidium bromide.
Which descriptions of this compound are correct?
Image:
Q14 (binary/octet-stream)
Responda
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A
-
B
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C
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D
Questão 13
Questão
The electronic structures of atoms P and Q are shown in the diagram at the left.
P and Q react to form an ionic compound.
What is the formula of this compound?
Image:
Q15 (binary/octet-stream)
Responda
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A PQ2
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B P2Q
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C P2Q6
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D P6Q2
Questão 14
Questão
The table contains information about four substances.
Which substance is potassium chloride?
Image:
Q16 (binary/octet-stream)
Responda
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A
-
B
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C
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D
Questão 15
Questão
Which two elements react together to form an ionic compound?
Image:
Q17 (binary/octet-stream)
Responda
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A W and X
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B X and Y
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C Y and Z
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D Z and W
Questão 16
Questão
Which change to an atom occurs when it forms a positive ion?
Responda
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A It gains electrons.
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B It gains protons.
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C It loses electrons.
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D It loses protons.
Questão 17
Questão
The electronic configuration of an ion is 2.8.8.
What could this ion be?
Image:
Q19 (binary/octet-stream)
Responda
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A
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B
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C
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D
Questão 18
Questão
When sodium chloride is formed from its elements, each chlorine atom ……1…… one ……2…….
Which words correctly complete gaps 1 and 2?
Image:
Q20 (binary/octet-stream)
Responda
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A
-
B
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C
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D
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