Consider the following reaction. N2 + 3 H2 → 2 NH3 .
28.0 grams of N2 and 5.04 grams of H2 are
reacted, producing 17.8 grams of NH3. What
is the percent yield?
1. 191%
2. 84.0%
3. 14.7%
4. 34.0%
5. 52.4%
6. Not enough information is given.
7. 62.9%

air quality

poor drinking water

and heavy polution

can lead to poor health

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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