Practice 11: balance this redox reaction using the oxidation-number change method and describe each step you used:

hcl (aq) + zn (s) → zncl2 (s) + h2 (g)

Connect the whole numbers on the periodic table to indicate what they represent?

Which of the following is most likely true about water in chemical systems? a) water dissolves nonpolar ionic compounds. b) water dissociates ionic compounds. c) water dissociates covalent molecules. d) water dissolves nonpolar covalent substances.

Identify arrows pointing to bonding electrons. done h-0-0-h ) intro