Chem Com Unit 1-D vocab

A symbolic expression summarizing a chemical reaction, such as2 H2 (g) + O2 (g) → 2 H2O (g)

• Chemical Equation

• Chemical reaction

• Chemical Symbol

• Subscript

The process of forming new substances from reactants that involves the breaking and forming of chemical bonds.

• Chemical Formula

• Chemical reaction

• chemical equation

• subscript

A symbolic expression representing the elements contained in a substance, together with subscripts that indicate the relative numbers of atoms of each element, such as H2O

• chemical equation

• chemical reaction

• chemical formula

• chemical symbol

A solid solution consisting of atoms of two or more metals

• chemical compound

• atom

• alloy

• products

The smallest particle of a substance retaining all the properties of that substance

• Atom

• alloy

• chemical symbol

• molecule

The number printed below the line of type indicating the total atoms of a given element in a chemical formula; in H2O, for example, the subscript 2 specifies the total H atoms.

• subscript

• coefficient

• products

• atom

The starting materials in a chemical reaction

• Reactants

• Products

• Subscripts

• Coefficients

The smallest particle possessing the properties of an element

• Formula Unit

• Molecule

• Atom

• Compound

An abbreviation of an element’s name, such as N for nitrogen or Fe for iron

• atom

• molecule

• chemical formula

• chemical symbol

An ion composed of two or more atoms, such as the ammonium cation NH4+, or acetate anion, C2H3O2-

• molecule

• atom

• polyatomic ion

• chemical formula