What should you call a chain of eight amino acids? A chain of 200 amino acids?

A molecule of DNA is a polymer composed of ________.

A. Glucose

B. Amino acids

C. Fatty acids

D. Nucleotides

Explain why amino acids are insoluble in diethyl ether but N-acetyl amino acids are soluble.

The $20$ standard amino acids are called $\alpha$-amino acids. Certain $\beta$-amino acids are found in nature. Draw the structure of $\beta$-alanine ($3$-amino- $n$-propionate).

What type of bond is between the atoms of table salt?

Antacids neutralize acid by the following reaction. $\ce{Mg(OH)_2 + 2HCl \to MgCl_2 + H_2O}$ Identify the acid, base, and salt.

Why is it necessary to use sealed casks when making wine?

This chemical reaction below is used to remove chlorine from water. What type of reaction is it?

This chemical reaction below is used to remove chlorine from water. What type of reaction is it?

$$\mathrm{HClO}+\mathrm{Na}_2 \mathrm{SO}_3 \longrightarrow \mathrm{Na}_2 \mathrm{SO}_4+\mathrm{HCl}$$

Use the information in Table 2.1, and calculate the Faraday constant.

Which subatomic particle has negative charge?

Use Figure 2.1, shown here, to answer the following questions.

To be efficient, where is the optimum place to be on a graph like Figure 2.1? ____________________

The three-domain system uses molecular data to designate what three evolutionary domains?
A. Archaea, Eukarya, and Animalia
B. Archaea, Bacteria, and Eukarya
C. Protists, Bacteria, and Fungi
D. Bacteria, Viruses, and Eukarya

Classify each of the following organic reactions as substitution, addition, oxidation-reduction elimination, or condensation. propane + fluorine $\rightarrow$ 2-fluoropropane + hydrogen fluoride