Which pair of species have the most nearly identical atomic and molecular properties? 1. 35/17cl and 80/35br 2. 7/3li and 9/4be 3. 23/11na and 23/11na+ 4. 19/9f and 19/9f− 5. 12/6c and 13/6c

If a solution is considered basic, then a) the hydroxide ion and hydronium ion concentrations are equal. b) the hydroxide ion concentration is less than the hydronium ion concentration. c) the hydronium ion concentration is greater than the hydroxide ion concentration. d) the hydroxide ion concentration is greater than the hydronium ion concentration.

Choose all the answers that apply. ionic compounds dissolve easily in water do not dissolve in water have low melting points have high melting points conduct electricity when melted

If you try to move a piano and are unable to move it, did you perform any work in the scientific sense of the word? yes? or no? this question is worth 20 points! let it be correct!