What mass (g) of NO2 can be produced by combustion of 43.9 g of ammonia? Be sure to balance the reaction. __ NH3 + ___O2NO2 + H2O
a. 2.58 b.178
c. 119 d.0.954 e. 43.9

i don't see a text, but i am gonna assume this *orbit* the curved path, usually elliptical, described by a planet, satellite, spaceship, etc., around a celestial body, as the sun.

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.