CS Chemistry: KS3 Revisit - Chemical Reactions

Vocabulary flashcards covering core terms, concepts, and reaction types from the CS Chemistry KS3 Revisit checklist on chemical reactions.

Chemical change

A type of transformation, distinct from a physical change, during which a range of observable changes can be made.

Physical change

A category of change differentiated from a chemical change, exemplified by changes of state.

Changes of state

Physical transitions between different states of matter described in terms of particles and energy.

Periodic table

A reference arrangement used to locate and identify the chemical symbol for an element.

Chemical symbol

A standardized shorthand notation representing an element, found on the periodic table.

Common chemical compounds

Everyday chemical substances whose formulae are recalled, including water, carbon dioxide, and methane.

Compounds and mixtures

Two distinct categories of substances whose differences in composition and properties are described in chemistry.

Chemical word equations

Equations written to represent chemical reactions using the names of given reactants and products.

Reactants and products

The starting substances and resulting substances specified when writing chemical word equations.

Reaction of acids and metals

A chemical reaction involving an acid and a metal that yields predictable products and can be expressed as a word equation.

Chemical tests for hydrogen and carbon dioxide gas

Specific chemical testing procedures used to detect and confirm the presence of hydrogen gas and carbon dioxide gas.

Thermal decomposition of a metal carbonate

A chemical reaction involving the breakdown of a metal carbonate to produce specific product substances.

Reaction of acids and metal oxides

A chemical reaction between an acid and a metal oxide whose products can be predicted and represented in a word equation.

Chemical symbol equations

Symbolic representations of chemical reactions that must be balanced to reflect correct proportions.

Simple ionic compounds

Compounds whose chemical formulae can be predicted when given the electrical charges of constituent ions, such as $Fe^{2+}$ and $O^{2-}$.

Chemical apparatus

A range of laboratory equipment and instruments identified and utilized in chemical experiments.