Which is a harmonic device without a tonal center that places equal emphasis on all tweleve tones of all the chronic scale

Atonality

Explanation:

Atonality means total absence of tonality. Atonal music avoids any tonal center or key, making free use of all 12 notes of the chromatic scale. Once all the notes are given equal importance, there is no longer any force of attraction converging towards a tonic center. Atonality was the logical consequence of a trend begun in the Romantic period.

social status of early civilizations was based primarily on economic power.- true ( first choice)