trộn 50ml dung dịch CaCl2 2,0M với 50ml dung dịch AgNo3 3,0M. Thu được dung dịch A và m gam kết tủa. Gía trị của m là

Variables,control,conclusion and finally scientific theory

A) the enthralling of formation for pure element in its standard state is always positivehope this : )

Ibelieve the answer is d

Non metal is an element or substance that is not a metal metal is a solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivitymetalloid is an element (e.g., germanium or silicon) whose properties are intermediate between those of metals and solid nonmetals. they are electrical semiconductors.