Determine the empirical formula for each compound whose percentage composition is shown below. 1) 43% C and 57% O

2) 40% K, 26.7% Cr, and 33.0% O

african americans demonstrated their newly found freedom by relocating often in search of relatives whom they had been separated from during slavery. others established schools to educate freed people and they built institutions such as churches and political organizations to advocate for their rights.

the answer would be b i believe