Balance the following redox reaction in acidic solution: h+(aq)+zn(s)→h2(g)+zn2+(aq)

Asample of aluminum foil contains 8.60 × 1023 atoms. what is the mass of the foil?

All of the following are homogeneous mixtures except a) sugar dissolved in water. b) orange juice. c) coffee with cream. d) household vinegar. e) apple juice

Spaghetti sauce can be high in sodium. what is a good guideline for mg of sodium per half cup serving? a. less than 1 mg b. less than 800 mg c. less than 700 mg d. less than 400 mg