3. Let each shake of the pennies or thumbtacks represent 1 year. What is the half-life, in years, for the pennies in experiment 1? What is the half-ife, in years, for the
thumbtacks in experiment 2?

In experiment 1 it starts with 200 pennies and after one half life, 95 stable pennies are taken out.

In experiment 2 it starts with 50 thumbtacks and after one half life 12 stable ones are taken out.

Brainliesttt me asap! the below reaction can be categorized as more than one type of reaction. which reactions are these, and what are the types of reactions?

Explain that newton first law,second law and third law of motion?

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