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Reactivity 2.1

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (24)

#1
Front (Question)

What do chemical reactions show about products and reactants in a reaction?

Back (Answer)

The ratio

#2
Front (Question)

How does the balancing of a chemical equation relate to the Law of Conservation of Mass?

Back (Answer)

No matter can be created or destroyed, so the chemical equations must be balanced i.e. atoms in reactants = atoms in products

#3
Front (Question)

Reactants

Back (Answer)

Elements/compounds consumed in a chemical reaction

#4
Front (Question)

Products

Back (Answer)

Elements/compounds produced by a chemical equation

#5
Front (Question)

When is a chemical equation balanced?

Back (Answer)

When atoms in reactants = atoms in products

#6
Front (Question)

Steps for balancing a chemical reaction

Back (Answer)

Word equation, unbalanced chemical equation, balancing, symbols of state

#7
Front (Question)

What is a precipitate?

Back (Answer)

An insoluble ionic compound

#8
Front (Question)

Ionic compounds consisting of these ions are generally soluble (no exceptions)

Back (Answer)

Na+ K+ NH4+ NO3- CH3COO-

#9
Front (Question)

Exceptions to ionic compounds containing ions of Cl-, Br-, I- being generally soluble

Back (Answer)

Ag+ Pb2+

#10
Front (Question)

Exceptions to ionic compounds consisting of ions of SO42-, Cr2O72- being generally soluble

Back (Answer)

Pb2+ Ba2+ Ag+ Ca2+

#11
Front (Question)

Exceptions to ionic compounds containing CO32-, PO43- and S2- being generally insoluble

Back (Answer)

Na+ K+ NH4+

#12
Front (Question)

Exceptions to ionic compounds containing OH- being generally insoluble

Back (Answer)

Na+ K+ NH4+ Ba2+ Ca2+

#13
Front (Question)

Ionic equation

Back (Answer)

Balanced equation which only contains species that underwent change during the chemical reactions i.e. only includes species that underwent bond breaking and/or bond making

#14
Front (Question)

Spectator ions

Back (Answer)

Ions (liquid or aqueous) that remain unchanged during the reaction

#15
Front (Question)

What happens to spectator ions in an ionic equation?

Back (Answer)

Omitted

#16
Front (Question)

In a precipitation reaction, which ions are included in the ionic equation?

Back (Answer)

Ions that eventually end up in precipitate

#17
Front (Question)

Steps for writing ionic equations

Back (Answer)

Write a full chemical equation for the reaction Show the individual ions for any species that will be present as separate ions (liquid/ aqueous ionic compounds and aqueous acids) Eliminate any spectator ions Write the ionic equation

#18
Front (Question)

Which ions are written as separate ions in an ionic equation?

Back (Answer)

Liquid and aqueous ionic compounds Aqueous acids

#19
Front (Question)

Element + oxygen ->

Back (Answer)

Elemental oxide

#20
Front (Question)

Hydrocarbon + oxygen ->

Back (Answer)

Carbon dioxide and water

#21
Front (Question)

Complete combustion

Back (Answer)

Hydrocarbon + oxygen -> carbon dioxide + water

#22
Front (Question)

Reactive metal + water ->

Back (Answer)

Metal hydroxide + hydrogen

#23
Front (Question)

Acid + metal ->

Back (Answer)

Salt + hydrogen

#24
Front (Question)

Acid + base ->

Back (Answer)

Salt and water