When molecules are not touching what is that called

Using the periodic table, complete the table to describe each atom. type in your answers.a ? b? c? d? e? f?

Which of the following is always a reactant in a combustion reaction? oxygen nitrogen hydrogen carbon

Which statement is true about hcl? (5 points) select one: a. it is a salt because it increases the concentration of metallic ions. b. it is a salt because it is formed by the reaction of an acid and a base. c. it is an acid because it increases the concentration of hydroxyl ions. d. it is an acid because it increases the concentration of hydronium ions.