Which chemical equation represents a precipitation reaction? A.
Mg(ClO3)2(aq) + 2HCl(aq) → MgCl2(aq) + 2HClO3(aq)
B.
AlBr3(aq) + 3LiI(aq) → AlI3(aq) + 3LiBr(aq)
C.
NH4NO3(aq) + HBr(aq) → NH4Br(aq) + HNO3(aq)
D.
Li2CO3(aq) + FeCl2(aq) → 2LiCl(aq) + FeCO3(s)
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Nitric oxide (no) can be formed from nitrogen, hydrogen and oxygen in two steps. in the first step, nitrogen and hydrogen react to form ammonia: n2(g) + 2 h_2(g) rightarrow 2 nh_3 (g) delta h = -92. kj in the second step, ammonia and oxygen react to form nitric oxide and water: 4 nh_3(g) + 5 o_2(g) rightarrow 4no(g) + 6 h_2o(g) delta h = -905. kj calculate the net change in enthalpy for the formation of one mole of nitric oxide from nitrogen, hydrogen and oxygen from these reactions. round your answer to the nearest .

Describe the difference between a. a hypothesis and a theory and b. an observation and an experiment.

How do limiting factors most affect population size? ostop population growthrestrict population growthincrease population sizeresult in positive impactso