Si en un experimento se obtuvieron 18g. de amoniaco (NH³) ¿cuántos moles de amoniaco de produjeron?​

Urea, co(nh2)2, is manufactured on a large scale for use in producing urea-formaldehyde plastics and as a fertilizer. what is the maximum mass of urea that can be manufactured from the co2 produced by combustion of 1.00 x 104 grams of co2?

Energy is released during which phase changes? check all that apply. boiling condensing depositing freezing melting subliming

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line