CH4+2O2 CO2+2H2O If 2.1 moles of O2 are reacted with CH4, how many moles of CO2 are
formed?

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.

If anyone would be able to me out with these three questions it would be these are from the chem 2202 course.

In salt water solution,the salt is the blank