1.

The concentration of CO in a sample of air found to be 80 ppm. Find the mass of CO in 100 g of air.

Answer»

Can you imagine a world without merchants, where we are left to our own devices to acquire goods and services without middlemen? SOUNDS like a HARSH place to be. The sale and TRADE of goods defines MUCH of the development and history of the world.

Please mark me as Brainlist I want only one Brainlist answer please.



Discussion

No Comment Found