If scientists cannot drill down deep enough to find the earthquake's central starting point, how are scientists so sure earthquakes happen the way they predict?

In numbering carbon atoms in the parent chain of a hydrocarbon, why would you number from right to left, rather than left to right

Consider this equilibrium: n29) + o2(g) + 2no(c).nitrogen gas and oxygen gas react when placed in a closed container. as the reaction proceeds towards equilibrium, what happens to the rate of thereverse reaction?

Asubstance is a good conductor of electricity which of the following best explains a probable position of the substance in a periodic table