The half-life time for a first-order process, A products is 7 hours. How long will take the concentration of X to go fromstarting concentration of 2.000 M 0.250 M?

What is the most stable monatomic ion formed from nitrogen

Match term definition ellipse a) diagonal cross section of a cylinder circle b) diagonal cross section through the widest part of a sphere sphere c) cross section parallel to the base of a cone great circle d) shape created when a semi-circle is rotated around the y-axis triangle e) perpendicular cross section of a cone

Imagine that you push on a large rock. at what point does your effort change the rock’s mechanical energy?