Which is best represented by the equation? 2Mg + 02 → 2MgO
O A. Law of Conservation of Energy
O B. Law of Conservation of Mass
O C. Law of Superposition

Read the given expression. x = number of protons − number of core electrons which of the following explains the identity of x and its trends across a period? x is the effective nuclear charge, and it remains constant across a period. x is the screening constant, and it remains constant across a period. x is the effective nuclear charge, and it increases across a period. x is the screening constant, and it increases across a period.

What is the empirical formula for c4h8o2

Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt