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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

What is latent heat of fusion?

The heat absorbed when a liquid changes to a gas.

The heat absorbed to change a solid to a liquid at constant temperature.

The heat absorbed to raise the temperature of a substance.

The heat released when a gas changes to a liquid.

When lead (II) nitrate is heated a solid is formed. The colour of the solid is?

Blue.

White.

Yellow.

Brown.

The products of the decomposition reaction MgCO_3(s) (Heat) → are:

MgO + CO₂.

MgO + CO

Mg + CO₃.

MgO + CO + O

What is the chemical name for the white solid formed when copper (II) sulfate pentahydrate is heated?

Copper oxide.

Copper metal.

Hydrated copper(II) sulfate.

Anhydrous copper(II) sulfate.

If you observe bubbles when heating a liquid, but the temperature is below its boiling point, what is likely happening?

The liquid is freezing.

The liquid is boiling.

A gas is dissolving into the liquid.

A chemical reaction is producing a gas.