Câu 30:Hút chính xác 10ml dd NaCl 0,05N cho vào bình tam giác, rồi chuẩn độ bằng dung dịch AgNO3tốn hết 9,5 ml. Tính nồng độ dung dịch AgNO3.

Select the atomic models that belong to the same element

There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of several useful plastics. in the first step, calcium carbide and water react to form acetylene and calcium hydroxide: cac2 (s) + 2h2o (g) → c2h2 (g) + caoh2 (s) =δh−414.kj in the second step, acetylene, carbon dioxide and water react to form acrylic acid: 6c2h2 (g) + 3co2 (g) + 4h2o (g) → 5ch2chco2h (g) =δh132.kj calculate the net change in enthalpy for the formation of one mole of acrylic acid from calcium carbide, water and carbon dioxide from these reactions. round your answer to the nearest kj .

Describe the properties of sodium, chlorine, and sodium chloride