Which statement is true about the properties of the majority of the elements in the far left column of the periodic table? a. they are highly reactive. b. they have no luster. c. they have low electrical conductivity. d. they have low heat conductivity.

How heavy is thanos? a) 3000 lbs b) all of it c) the price of tea in china d) heavy enough

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 .

How many atomic mass units are equal to 1.672×10−24 g of protons?