Question 1 What would you do to balance this reaction?
N.
2
H₂
NH3
a
H
A. Double the coefficient of N2 (2 N2)
B. Multiply coefficient of H, by 3 (3 H2)
C. Multiply subscripts of Hy by 3 ( H.)
D. Double the subscripts for NH3 (N2H)
E. Double the coefficient of NH3 (2NH3)

Aspirin has a density of 1.40 g/cm3 what is the volume in cubic centimeters of a tablet weighing 320 mg ?

Which of the following is not a good technique for managing used oil? a) have specific, labeled catch pans available for technicians who are collecting oil b) spills in your shop and any releases on pavement or outside should be poured down a drain c) do not use oil containers for antifreeze or other non-similar fluids d) be prepared for oil spills with the proper absorbents

What method(s) do plants use to obtain nitrogen? select all that apply. absorb it from the atmosphere use bacteria to convert nitrogen to usable form obtain usable nitrogen compounds from the soil absorb nitrogen from water taken in at the roots