How many moles of chromium are present in 13.7 grams of chromium metal? give your answer to 3 decimal

Urea, co(nh2)2, is manufactured on a large scale for use in producing urea-formaldehyde plastics and as a fertilizer. what is the maximum mass of urea that can be manufactured from the co2 produced by combustion of 1.00 x 104 grams of co2?

(apex) when a cup of water is dropped, as the cup falls, the water in the cup falls out true or false?

All cells are made of four types of acids, lipids, proteins, and carbohydrates.