Chemical change Chemical changes occur when a substance combines with another to form a new substance, called synthesis or, alternatively, decomposes into two or more different substances.
(Chemical; change; Chemical changes; T:occur when a substance combines with another) (a substance; combines; with another; to form a new substance) (a new substance; called alternatively; synthesis)
Chemical a substance a new substance
change combines called alternatively
Chemical changes T:occur when a substance combines with another
with another to form a new substance
synthesis