Solid potassium chromate (k2cro4) is slowly added to a solution containing 0. 50 mol l-1 agno3 and 0. 50 mol l-1 ba(no3)2. What is the ag+ concentration when bacro4 just starts to precipitate? the ksp for ag2cro4 and bacro4 are 1. 1 × 10-12 and 1. 2 × 10-10 respectively

What did pavlov initially notice about the animals in his original research after conditioning took place?

Tissues that carry food water and nutrients throughout the plant

Afish fossil is found in a rock. a foot bone and tooth are found in an older layer of the same rock. what can scientists learn from the rock? a) the area changed from land to water. b) the area changed from water to land. c) the area has always been land. d) the area was once an ocean.