Look at the activity series chart. during a single-replacement reaction, a more-active metal will replace a less-active metal in a compound. which single-replacement reaction will occur? a. al will replace k in a compound. b. ca will replace li in a compound. c. ni will replace fe in a compound. d. mg will replace ag in a compound.

The parabola opens: y=√x-4 (principal square root) up down right left

41/17 as a decimal rounded to the nearest hundredth

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 0 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)