A solution was prepared by dissolving 37.0 gg of KClKCl in 225 gg of water. Part A Calculate the mass percent of KClKCl in the solution. Express your answer with the appropriate units.

An alcohol thermometer makes use of alcohol's changing in order to measure temperature. as the temperature goes up, the alcohol contained in the thermometer increases in volume, filling more of the thermometer's tube.

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

Which radioisotope is used to date fossils? a. oxygen-16 b. carbon-14 c. uranium-238 d. carbon-12