farmers add nitrogen fertilisers to their Cycle explain why they have to do This when there is so much nitrogen in air

Δu of , in kj/kg, as it isto k, (a)as a of , (b) at , (c) at .

Imagine one batch of soup (batch “a”) is made with 8.19 g/can of salt, according to the recipe, and a second batch of soup (batch “b”) is made with 8.32 g/can of salt. explain which batch would be more resistant to frost damage if it is shipped a great distance in winter and explain why.

How many grams of ammonia would be produced by the decomposition of 16.93 mlof hydrazine? (the density of hydrazine is 1.021g/ml)