化學計量數(英文:stoichiometry)係一場化學反應嗰啲反應物同反應產物之間喺份量上嘅關係。 考慮一場噉嘅化學反應: a A + b B ⟶ p P + q Q {\displaystyle {\ce {{{\mathit {a}}A}+{{\mathit {b}}B}->{{\mathit {p}}P}+{{\mathit {q}}Q}}}} , 當中 A {\displaystyle {\ce {A}}} 同 B {\displaystyle {\ce {B}}} 係反應物(做反應嘅原料), P {\displaystyle {\ce {P}}} 同 Q {\displaystyle {\ce {Q}}} 反應產物(場反應產生嘅物質), a {\displaystyle {\ce {\mathit {a}}}} 、 b {\displaystyle {\ce {\mathit {b}}}} 、 p {\displaystyle {\ce {\mathit {p}}}} 同 q {\displaystyle {\ce {\mathit {q}}}} 反映嘅就係化學計量數-簡化噉講即係「每 a {\displaystyle {\ce {\mathit {a}}}} 粒 A {\displaystyle {\ce {A}}} 同每 b {\displaystyle {\ce {\mathit {b}}}} 粒 B {\displaystyle {\ce {B}}} 會做反應出 p {\displaystyle {\ce {\mathit {p}}}} 咁多粒 P {\displaystyle {\ce {P}}} 同 q {\displaystyle {\ce {\mathit {q}}}} 咁多粒 Q {\displaystyle {\ce {Q}}} 」[1]。 Remove ads睇埋 化學反應 攷Loading content...Loading related searches...Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads