A scientist measures a pencil and finds that it is 12.2 cm. She then converts the number 12.2 cm into meters, finding that it is 0.0122 meters. How many significant figures are in the number 12.2 cm?

How many significant figures are in the number 0.0122 meters?
significant figures for 12.2 cm, and significant figures for 0.0122 meters.

What are the first three quantum numbers for the electrons located in subshell 2s?

In the lab, ammonia was mixed with water to form ammonium hydroxide. what is/are the reactant(s)? o water and ammonia o ammonia o ammonium hydroxide need

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 .