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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
5/80 MCQs for:
MATTER - PROPERTIES AND TRANSFORMATION: Effect Of Heat On Substances
Why does a substance cool down during evaporation?
Energy is absorbed from the surroundings.
Chemical bonds are formed.
The substance becomes denser.
Faster-moving, higher-energy particles escape the surface, leaving slower, lower-energy particles behind.
What name is given to the change of state labelled C?
Liquefaction.
Solidification.
Fusion.
Condensation.
What is the fundamental difference between the three states of matter?
Shapes of containers.
The shape of the particles.
The number of particles.
The degree of movement of the particles.
The process of water changing to steam is called:
Solidification.
Condensation.
Vapourization.
Fusion.
What is the chemical name of the yellow solid formed when lead(II) nitrate is heated?
Lead metal.
Lead(II) oxide.
Nitrogen dioxide.
Lead(II) nitrate.
