Review the families and classification of elements in the periodic table. Based on this information, you would expect elements to the left of the stair-step line in the periodic table to form ions and have valence electron(s).

A) positive; 1

B) negative; 4 - 7

C)positive; four or less

D) negative; three or less

Answer- C)positive; four or less

When hydrochloric acid reacts with potassium hydroxide solution, the following reaction occurs. hcl (aq) + koh (aq) h2o (l) + kcl (aq) the reaction gives off heat energy, so it is an reaction.

If a solution had a ph of 7 what is the solution

What happens when an atom of sulfur combines with two atoms of chlorine to produce sci2? a. each chlorine atom shares a pair of electrons with the sulfur atom. b. an electron is transferred from each chlorine atom to the sulfur atom. c. an electron is transferred from the sulfur atom to each chlorine atom. d. each chlorine atom shares all its valence electrons with the sulfur atom.