Biomolecules are formed when small molecules join together in a specific and repeating way, what element is the basis for all these molecules

In which region of the carbon-13 NMR spectrum would you expect to find a resonance for the carbonyl group of an aliphatic ketone? The given chemical shift ranges are approximate. A. 50-80 ppm B. 180-210 ppm C. 100-150 ppm D. 65-85 ppm E. 9-10 ppm F.

What is the difference between parent geometry and actual geometry

Some baker of sourdough and a few other types of bread have what they call "starter dough". This dough contains yeast from which they make all their bread. Some starter dough is more than 100 years old.

The number of protons in an atom is called the what?

A metal sample weighing 43.5 g and at a temperature of 100.0 °c was placed in 39.9 g of water in a calorimeter at 25.1 °c. at equilibrium, the temperature of the water and metal was 33.5 °c. determine the specific heat capacity of the metal.

How does protein substance in an animal hide or skin be prevented from bacterial infection during the process of tanning? * a. By soaking in water b. By deliming using an acid c. By brine curing d. By scudding with dull knife

Nonpolar materials have separated positive and negative areas. True False

Large rocks being blasted to make way for the construction of a tunnel is an example of what type of weathering? A. Chemical B. Mechanical C. Deposition D. Erosion

A criminalist uses a fluorescent chemical called rhodamine, cyanoacrylate fumes, and a uv light source to see a fingerprint on a gun. Which type of evidence is he detecting? Gross evidence latent evidence direct evidence trace evidence

Which of the following energy changes occurs as a ball bounces