1.011)
Which of these substances will water dissolve?
A. lithium fluoride (an ionic substance)
B. carbon dioxide (a nonpolar molecule)
C. wax
D. all of these

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 .

Select the atomic models that belong to the same element

Consider the elements bromine and chlorine; which elements has a larger ionic radius ?