Which of the following is a product in the reaction described by the word equation below? iron + copper(II) sulfate > iron(II) sulfate +copper

Calculate the expected ph values of the buffer systems from the experiments (a,b,c,d), using the henderson- hasselbalch equation, ph-pka+log[a-]/[ha]. use for pka values carbonic acid= 6.37, and acetic acid= 4.75.

Water's surface tension and heat storage capacity are accounted for by its a) orbitals b) weight c) hydrogen bonds d) mass e) size

Structure of the atoms: discovery of the nucleus in 1909i need answering all of these questions