Fluorine has 7 valence electrons. which of the following is true of a fluorine molecule (f2)? a. a pair of electrons will be shared between the fluorine atoms. b. only 4 valence electrons will travel around each fluorine atom. c. twelve valence electrons will travel around each fluorine atom, but only 2 will remain around the respective atoms. d. each fluorine atom will take 1 valence electron from the other, and this will constantly happen back and forth.

In a closed or isolated system , matter can not be created or destroyed. it can change forms but is conserved true or false

The following reaction shows the products when sulfuric acid and aluminum hydroxide react. al(oh)3 + h2so4 → al2(so4)3 + h2o the table shows the calculated amounts of reactants and products when the reaction was conducted in a laboratory. sulfuric acid aluminum hydroxide initial amount of reactant 40 g 15 g theoretical yield of water from reactant 14.69 g 10.38 g what is the approximate amount of the leftover reactant? 11.73 g of sulfuric acid 10.33 g of sulfuric acid 11.12 g of aluminum hydroxide 13.67 g of aluminum hydroxide

Adeuteron, 21h, is the nucleus of a hydrogen isotope and consists of one proton and one neutron. the plasma of deuterons in a nuclear fusion reactor must be heated to about 3.02×108 k . what is the rms speed of the deuterons? express your answer using two significant figures.