7. Define electronically, i) oxidation, ii) reduction, iii)oxidant, iv)reductant, v)redox reaction

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Write a paragraph that provides examples of each stage of volcanic activity, a description of the volcano, and facts about each stage.

The fact that the total amount of energy in a system remains constant is a(n)

Given the following at 25c calculate delta hf for hcn (g) at 25c. 2nh3 (g) +3o2 (g) + 2ch4 (g) > 2hcn (g) + 6h2o (g) delta h rxn= -870.8 kj. delta hf=-80.3 kj/mol for nh3 (g), -74.6 kj/mol for ch4, and -241.8 kj/mol for h2o (g)