In the periodic table which elements typically have similar properties

How do i turn 2 s into one in the products

How does the value of the equilibrium constant show that a reaction reaches equilibrium very quickly? (a) the equilibrium constant is large. (b) the equilibrium constant is small. (c) the equilibrium constant is zero. (d) the value of the equilibrium constant does not show how quickly a reaction comes to equilibrium.

The footprints of a dinosaur and the burrow of an ancient shrimp are examples of which kind of fossils