Investigating Compound Properties and Elements (HSC SSCE Chemistry): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What happens to properties when elements combine chemically to form compounds?
What happens to properties when elements combine chemically to form compounds?
Properties become completely different
What is sodium chloride commonly known as?
What is sodium chloride commonly known as?
Table salt
What is the main aim of Investigation 5.1?
What is the main aim of Investigation 5.1?
Compare properties of elements & compound
Why should you not look directly into the crucible when heating magnesium?
Why should you not look directly into the crucible when heating magnesium?
Burning Mg produces bright white light
Why must you clean the magnesium ribbon with sandpaper before the experiment?
Why must you clean the magnesium ribbon with sandpaper before the experiment?
To remove any oxide coating on surface
Why should you periodically lift the crucible lid during heating?
Why should you periodically lift the crucible lid during heating?
To allow fresh oxygen into the crucible
Which properties are compared in the magnesium investigation?
Which properties are compared in the magnesium investigation?
State, appearance, conductivity, melting
In ionic bonding, what happens to electrons?
In ionic bonding, what happens to electrons?
Completely transferred between atoms
When magnesium reacts with oxygen, what ions form?
When magnesium reacts with oxygen, what ions form?
Mg²⁺ and O²⁻
In covalent bonding, how do atoms achieve stability?
In covalent bonding, how do atoms achieve stability?
By sharing electrons between them