How do two electrons in the same orbital compare in terms of the spin quantum number (ms)?

Which of these properties, used alone, would be least useful in identifying most minerals? a. color b. luster c. streak d. density

When an object falls through the air and encounters air resistance its overall speed will be than if it had not encountered air resistance? (one word answer)

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.