What are the different levels of energy

Smith and Cuvier discovered that similar groups of fossils in distant rock layers could be correlated. Why was this such a major breakthrough in geology? A. It disproved the principle of superposition. B.

Rank these elements according to first ionization energy. Na, Li, Rb, K

Of the following groups-adenine, ribose, and phosphate-which changed during the processes that convert among ATP, ADP, amd AMP? Which Group or groups does not change?

A 1.25-g sample contains some of the very reactive compound Al (C6H5) 3. On treating the compound with aqueous HCl, 0.951 g of C6H6 is obtained.

What Type of Reaction is the following: Cu2 (Cr2O7) + Fe (PO4) → Cu3 (PO4) + Fe2 (Cr2O7) 3 1. Synthesis 2. Decomposition 3. Single Replacement 4. Double Replacement

Name two ways that living things use proteins

Solid lithium metal and diatomic fluorine gas react spontaneously to form a solid product. give the balanced chemical equation (including phases) that describes this reaction.

What is the best way to transform a chemical potential energy into internal kinetic energy?

A reaction starts with 20.0 grams of lithium hydroxide (LiOH) and produces 31.0 grams of lithium chloride (LiCl), what is the percent yield of lithium chloride (LiCl) ? * LiOH + KCl - LiCl + KOH A) 64.5% B) 88.6% C) 81.5% D) 92.8%

You aren't sure if your pH meter needs to be calibrated, so you put it in a buffer solution that has a known pH of 7. You take four separate readings of the solution with the pH meter. The meter reports the pH as 5.5, 8.6, 6.3, and 9.4.