The following sequence of reactions occurs in the commercial productions of aqueous nitric acid: 4NH3(g) + 5O2(g) ⟶ 4NO(g) + 6H2O(l); LaTeX: ΔH = -907 kJ

2NO(g) + O2(g) ⟶ 2NO2(g); ΔH = -113 kJ

3NO2 + H2O(l) ⟶ 2HNO3(aq) + NO(g); ΔH = -139 kJ

Determine the total energy change for the production of one mole of aqueous nitric acid by this process.

it is to be noted that an alpha particle is an helium nucleus. so it contains 2 protons 2 neutrons and has a mass number of 4. when alpha decay particles are ejected from the nucleus it gets transformed into an atom which has atomic number less than 2 and a mass number less than 4.

an equation that could represent alpha decay is radium 226 decay of alpha particle forms radon 222.

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plasma is the state of matter where the substance is ionized and has no definite shape or volume. the fact of being ionized makes the substance a good electrical conductor.

answers: to make sure that all of the broken pieces of tablet were added to the water, to allow for fair comparison of all three trials, with different particle sizes to avoid experimental error

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