Uranium-238 has a half-life of 4.46 billion years and is often analyzed
through radiometric dating to find the ages of rocks. U-238 decays in
a series that can be summarized by the equation shown below.
238 206 4 0
92.U 82 Pb + x He+ye
How many alpha particles, x, and how many beta particles, y, are
needed to balance the nuclear equation?
Select one
X = 8: y = 6
O
X = 4, y = 16
X = 5: y = 32
O
X = 16; y = 22

Describe the interaction that occurs between two objects with the same electrical charge.

Ammonia and oxygen react to form nitrogen monoxide and water, like this: 4nh3 (g) + 5o2 (g) → 4no (g) + 6h2o (g) also, a chemist finds that at a certain temperature the equilibrium mixture of ammonia, oxygen, nitrogen monoxide, and water has the following composition: compound pressure at equilibrium nh3 65.1atm o2 31.3atm no 62.7atm h2o 65.8atm compound pressure at equilibrium nh3 65.3 atm o2 7.79 atm no 12.1 atm h2o 65.8 atm calculate the value of the equilibrium constant kp for this reaction. round your answer to 2 significant

What is the main reason why some developing countries fear the increase the free trade policies around the world?