Pick out all of the numbers that are compressions in the sound wave above, moving from left to right on the wave. Pick out of all of the numbers that are rarefactions in the sound wave above, moving from
right to left on the wave. This 9-digit number is the combination for the lock to the next page of this
escape activity.

What is the atomic number of an atom that has 6 protons

Elements in group 2 are all called alkaline earth metals. what is most similar about the alkaline earth metals?

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 .