(I think the third option but idontknow) Use the reaction to answer the question.

2N₂ + 3H₂ → 2NH₃

Nitrogen and hydrogen gases react to form ammonia. Nitrogen gas is triple bonded between the atoms. Hydrogen gas and ammonia are single bonded between the atoms. Which bonds are in the reactants?

two N≡N and three H–H

two N=N and three H≡H

two N=N and three H–H

two N≡N and three N–H

Alow cost, low earth orbit (leo) satellite is to be fabricated at a university, for subsequent launch by rocket. what are the constraints and objectives for selection of a material suitable for the satellite bus (i.e. the structure)? explain each in brief. (15 marks) b)suggest sources of data which could support the selection of materials for applications in space. (5 marks) c) set weights for the objectives listed in (2a) using the digital logic method. (5 marks)

Which is not true of the intertropical convergence zone? a) it features heavy precipitation b) it's where the trade winds collidec) it's a high-pressure zone with sinking air d) it is also known as the doldrums

Calculate a pendulums frequency of oscillation (in hz) if the pendulum completes one cycle in 0.5s.