Cov reactivity series ntawm hlau yog ib daim ntawv teev cov hlau nyob rau hauv thiaj li yuav txo reactivity. Feem ntau, qhov ntau reactive ib hlau yog: ntau zog nws reacts nrog lwm yamtshuaj. yooj yim dua nws poob electrons los tsim cov ions zoo (cations)
Cov hlau puas muaj zog nrog cov kua qaub?
Concentrated HCl lossis Concentrated H2SO4 yuav hnov zoo heev nrog cov hlau. Cov tshuaj tiv thaiv nrog concentrated acids yog exothermic heev (tso tawm cua sov).
Pob hlau reactive?
Cov reactivity ntawm hlau yog vim qhov sib txawv ntawm kev ruaj ntseg ntawm lawv cov khoom siv hluav taws xob raws li atoms thiab raws li ions. Raws li lawv yog tag nrho cov hlau lawv yuav tsim cov ions zoo thaum lawv hnov.
Yuav ua li cas hlau teb sai heev?
Cov hlau uas ua kom nrawm tshaj plaws yog magnesium; nws reacts vigorously nrog hydrochloric acid.
Yuav ua li cas cov hlau reacts nquag nrog dej?
Metals xws li potassium thiab sodium hnov mob hnyav nrog dej txias. Nyob rau hauv cov ntaub ntawv ntawm sodium thiab poov tshuaj, cov tshuaj tiv thaiv yog nruj heev thiab exothermic uas cov evolved hydrogen tam sim ntawd catches hluav taws. Cov tshuaj tiv thaiv calcium uas muaj dej tsawg dua.
