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ENERGY: Action of electricity on materials
ENERGY: Action of heat on materials
MATTER - PROPERTIES AND TRANSFORMATION: Chemical Reactions And Equations
MATTER - PROPERTIES AND TRANSFORMATION: Chemical Symbols, Formulae And Valency
MATTER - PROPERTIES AND TRANSFORMATION: Effect Of Heat On Substances
MATTER - PROPERTIES AND TRANSFORMATION: Introduction To Chemistry - Symbols
MATTER - PROPERTIES AND TRANSFORMATION: Mixtures And Pure Substances
MATTER - PROPERTIES AND TRANSFORMATION: Periodic table - Families of elements and Relative reactivity
MATTER - PROPERTIES AND TRANSFORMATION: Reaction With Oxygen of air
MATTER - PROPERTIES AND TRANSFORMATION: The Atom And Sub-Atomic Particles
5/63 MCQs for:
MATTER - PROPERTIES AND TRANSFORMATION: Reaction With Oxygen of air
When sulfur (S) burns in air, what pungent-smelling gas is produced?
Sulfur dioxide.
Hydrogen.
Sulfur trioxide.
Hydrogen sulfide.
When carbon (C) burns in a sufficient supply of oxygen, what gas is primarily produced?
Sulfur dioxide.
Methane.
Carbon monoxide.
Carbon dioxide.
What is the formula of rust?
Fe₃O₂.
Fe₂O.
H₂O.
Fe₂O₃.xH₂O.
The liquid state of air (obtained by cooling and compression) is a mixture, meaning its components:
Are insoluble in each other.
Have the same density.
Have different boiling points.
Are chemically bonded.
When copper (Cu) is heated in air, what is formed on its surface?
Black copper(II) oxide.
Green copper carbonate.
Red copper oxide.
Blue copper sulfate.
