Tính nồng độ cân bằng của ion Cd2+ trong dung dịch chứa Cd(NO3)2 và Na2H2Y có nồng độ đầu đều bằng 0,01M tại pH=10.Biết pì của CdY2- là 16,6. H4Y có các hằng số acid từng nấc là pK1=2; pK2=2,67; pK3=6,27; pK4=10,95.

Suppose that during that icy hot lab 65,000 j of energy were transferred to 450 g of water at 20°c what would have have been the final temperature of the water

Two people each hold the end of a rope and create waves by moving their arms up and down. this wave is best classified as a transverse wave because a) both the rope particles and the wave are moving in the same direction. b) the wave is moving up and down as the particles of the rope move horizontally. c) the wave is moving horizontally as the particles of the rope move up and down. eliminate d) the wave is moving in a parallel direction with the motion of the person's arms.

How can a mixture of salt water be separated into salt and water