10 Questions
What is an oxide?
A chemical compound containing at least one oxygen atom and one other element
What is the oxidation state of oxygen in the oxide dianion?
−2
What protects aluminium foil from further oxidation?
A thin skin of Al2O3 (passivation layer)
What is stoichiometry in the context of oxides?
The measurable relationship between reactants and chemical equations
What is more common than binary oxides?
Oxides of more than one stoichiometry
Who applied the term 'atom' to the basic units of mass of the chemical elements?
John Dalton
What does the term 'atom' mean in Greek?
Uncuttable
When did atomic theory gain widespread acceptance in the scientific community?
By the end of the 19th century
What did scientists realize about Dalton's so-called atoms?
They have an underlying structure of their own
What does the term 'atom' now refer to when describing truly indivisible particles?
Elementary particles
Study Notes
Oxides and Stoichiometry
- An oxide is a compound containing oxygen in its -2 oxidation state.
- The oxidation state of oxygen in the oxide dianion is -2.
Properties of Oxides
- The thin layer of aluminium oxide protects aluminium foil from further oxidation.
Stoichiometry
- Stoichiometry in the context of oxides refers to the study of the quantitative relationships between reactants and products in chemical reactions involving oxides.
Types of Oxides
- Ternary oxides, which contain three elements, are more common than binary oxides, which contain two elements.
History of Atomic Theory
- The term 'atom' was applied to the basic units of mass of the chemical elements by John Dalton.
- The term 'atom' means 'indivisible' in Greek.
- Atomic theory gained widespread acceptance in the scientific community in the early 19th century.
- Scientists realized that Dalton's so-called atoms could be further divided into smaller particles, such as electrons, protons, and neutrons.
- Today, the term 'atom' refers to the smallest units of an element that still retain the properties of that element, which are truly indivisible particles.
Test your knowledge of chemical compounds with this oxide quiz. Explore the properties and characteristics of oxides, their prevalence in the Earth's crust, and their role in chemical reactions.
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