Explain what happens to the temperature of an ice cube as it melts.

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.

What are the similarities of physical and chemical change ?

The chemical bond connecting one nucleotide with the next one along the nucleic acid chain is called a