How does assigning oxidation states in compounds you balance redox reactions?
a. the oxidation state tells you how the bonding electrons are arrayed in an atom or molecule. b. the oxidation state tells you about an atom or molecule’s potential to accept or donate electrons. c. the oxidation state tells you the exact charge in each atom. d. the oxidation state is the equivalent of the formal charge. i'm a little stuck on chemistry homework.

Strong conductivity of plasma allows it to act and react as and

Describe the difference between a. a hypothesis and a theory and b. an observation and an experiment.

The atomic radius of sodium is 186 pm and of chlorine is 100 pm. the ionic radius for na+ is 102 pm and for cl– is 181 pm. in going from na to cl in period 3, why does the atomic radius decrease while the ionic radius increases? a. the inner electrons in the sodium cation shield its valence electrons more effectively than the inner electrons in the chloride anion do. b. the inner electrons shield the valence electrons more effectively in the chlorine atom than in the chloride anion. c. the outermost electrons in chloride experience a smaller effective nuclear charge than those in the sodium cation do. d. the outermost electrons in chloride experience a larger effective nuclear charge than those in the sodium cation do. e. monatomic ions are bigger than the atoms from which they are formed.