Which elements have similar chemical properties? A Na, K, mg or b, AI, S © N, O, F or he, ar kr ​

The clouds are grey and ground is wet. a quantitative b qualitative

During which time interval does the object travel approximately 10 meters

Insoluble sulfide compounds are generally black in color. which of the following combinations could yield a black precipitate? check all that apply. na2s(aq)+kcl(aq) li2s(aq)+pb(no3)2(aq) pb(clo3)2(aq)+nano3(aq) agno3(aq)+kcl(aq) k2s(aq)+sn(no3)4(aq)