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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
5/71 MCQs for:
MATTER - PROPERTIES AND TRANSFORMATION: Chemical Reactions And Equations
The reaction of an acid with a metal (e.g., zinc with hydrochloric acid) typically produces:
Carbon dioxide and a salt.
Oxygen gas and a salt.
Water and a salt.
Hydrogen gas and a salt.
The sign ⇌ means ?
Irreversible.
Backward reaction.
Forward reaction.
Reversible.
Which type of reaction results in a single compound breaking down into two or more simpler substances?
Decomposition.
Combination.
Double displacement.
Displacement.
What does the arrow (→) in a chemical equation signify?
Equals.
Yields or produces.
Reacts with.
Is composed of.
What is the coefficient for O₂ when the following equation is balanced? H₂ + O₂ → H₂O
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