1) What is the concentration of the salt solution that has 15 g of salt in 137 ml of
water?

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.

? you expect us to answer this? ? this is your schoolwork, i don't think we can with this, i think it would considering being

there are two significant figures.