Urgent ! i dont understand it.

56. one of the steps in the production of nitric acid involves the reaction of ammonia and oxygen to form nitrous oxide:

2nh₂ ₍g₎ + 2.5o₂ ₍g₎ ⇄ 2nh ₍g₎ + 3h₂o ₍g₎ + heat

describe and explain four ways in which an industrial chemist could increase the yield of nitrous oxide. (4 marks)

Non renewable resources like petroleum eventually

Select the correct answer from each drop-down menu.describe what happens to a carbon-11 atom when it undergoes positron emission.the decay of a carbon-11 atom _1_, and this causes it to emit _2_.options for 1: > changes a neutron into a proton> changes a proton into a neutron> is hit with a neutron> reconfigures its protons and neutronsoptions for 2: > a negatively charged electron-sized particle> a positively charged election-sized particle> two atoms and several neutrons> two neutrons and two protons

What does the xylem do? stores the glucose captures the sunlight absorbs oxygen into the leaf carries water from the roots to the leaves