Determine AH for 4NH3(g) + 302(g) 2N2(g) + 6H20(1) 2N2O(g) -> O2 (g) + 2N2(g)
AH = -164 kJ
2NH3 (g) + 3N20 (g) — 4N2(g) + 3H20 (1)
AH = -1012 kJ

Over the last 90 years, scientists have added to the body of evidence supporting the big bang theory. what is the latest piece of evidence discovered in 2014?

Write the formula for the following chemicals. 7. e. trinitrogen tetraoxide a calcium phosphate f. magnesium acetate b. potassium sulfide g nickel(iii) cyanide c carbon dioxide h. silver sulfate d. cobalt(ii) chloride

Which of the following is not one of the steps in the scientific method a. hypothesize b. summarize c. analyze d. familiarize