What is the concentration of ca2+(aq) in a saturated solution of caco3? (note: the solubility product constant ksp for caco3 is 4. 9 × 10–9. ).

Which of the following attitudes is not likely to lead to unsafe decisions? a. anxiety b. composure c. overconfidence

Which scenario describes intraspecific, indirect competition? a. a peacock defends its territory against another peacock. b. lions and hyenas compete for the same prey animals. c. a male black bear eats fish in an area of a lake, so other black bears can’t. d. different species of birds fight over spilled popcorn on the ground.

The equation 24x2+25x−47ax−2=−8x−3−53ax−2 is true for all values of x≠2a, where a is a constant.what is the value of a? a) -16b) -3c) 3d) 16