Characters used: 83 / 15000 Part E
In part E, you'll use your answers from parts B, C, and D to find the average density of each type of penny. Recall
that density is mass divided by volume:
D = "
5
Question 1
Calculate the average density of a penny (in g/mL) made before 1982. Show your work.
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-A-DEE 1E 들 를
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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 .

Asingle atom of an element has 21 neutrons, 20 electrons, and 20 protons. which element is it? ok o z

Start an single atom tab. observe the decay of polonium-211. after each decay, press the reset nucleus button to watch the process again. write a description of alpha decay for po-211