25.0 mL of ethanol is added to 100.0 mL of water. What is the volume percent concentration of this solution

Smog is the term used to describe the combination of fog and smoke

Which statement best describes the oxidation numbers of the atoms found in magnesium chloride? a. magnesium has a 2- oxidation number and chlorine has a 1+ oxidation number. b. magnesium has a 2- oxidation number and chlorine has a 2+ oxidation number. c. magnesium has a 2+ oxidation number and chlorine has a 1- oxidation number. d. magnesium has a 1+ oxidation number and chlorine has a 1- oxidation number.

Which factor is likely to impact the possible number of compounds ?