Investigating Chemicals

the formation of a new substance with different properties; cannot be undone by physical means

• Chemical change

• Chemical formula

• Chemical reaction

• Chemical symbol

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

a representation of a compound in which the elements are represented by their symbols and subscripts represent the number of atoms of each element

• Chemical change

• Chemical formula

• Chemical reaction

• Chemical symbol

a change caused by the interaction of two or more substances resulting in the formation of new substances

• Chemical change

• Chemical formula

• Chemical reaction

• Chemical symbol

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

representation of the name of an element; written as a capital letter or a capital letter followed by a lowercase letter(s)

• Chemical change

• Chemical formula

• Chemical reaction

• Chemical symbol

a pure substance made by chemically combining two or more elements; represented by a chemical formula

• Compound

• Element

• Physical change

• Precipitate

a pure substance that cannot be broken down chemically into simpler substances

• Compound

• Element

• Physical change

• Precipitate

change which alters the physical properties of a substance without changing its identity

• Physical change

• Precipitate

• Pure substance

• Subscript

the solid that is formed as a result of a precipitation reaction

• Physical change

• Precipitate

• Pure substance

• Subscript

a substance that is not mixed with any other substance

• Physical change

• Precipitate

• Pure substance

• Subscript

the number written to the right and slightly below an element in a chemical formula; represents the number of atoms of an element present in a chemical formula

• Subscript

• Chemical formula

• Chemical symbol

• Element