Analyze your thermal and electrical conductivity data. What trends did you notice? The materials from highest conductivity to lowest conductivity were in the same order for both tests. The materials from highest conductivity to lowest conductivity were in reverse order for both tests. The materials for both tests did not show any matching patterns to one another.

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 .

Which of these properties, used alone, would be least useful in identifying most minerals? a. color b. luster c. streak d. density

List four observations that indicate that a chemical reaction may be taking place