If an atom has 28 protons and 29 neutrons, what is the mass?

These non-polar regions of 9-fluorenone interact with solvent molecules with what types of intermolecular forces (list all that apply) : hydrogen bonding, dipole-dipole, dipole-induced dipole, or induced dipole-induced dipole (London dispersion) ?

Which solution below has the highest concentration of hydroxide ions? a. ph = 3.21 b. ph = 12.6 c. ph = 7.93 d. ph = 9.82 e. ph = 7.00?

Is this true? A substance is a single kind of matter that has a specific composition.

Why do A and T (and G and C) pair in a DNA double helix? Covalent bonds form between them. Van der Waals forces are thus maximized. Ionic interactions are thus maximized. Hydrogen bonds form between them.

What is the specific name of the covalent compound consisting of nine carbon atoms and 20 hydrogen atoms? A. Nonane B. Nonacarbon decahydroxide C. Nonahydrogen decacarbon D. Hydrocarbon

8. which change in state is associated with the heat of vaporization, 1. solid to liquid 2. liquid to vapor 3. solid to vapor 4. liquid to solid

A mixture of calcium carbonate, CaCO3, and barium carbonate, BaCO3, weighing 5.40 g reacts fully with hydrochloric acid, HCl (aq), to generate 1.39 L CO2 (g), mea sured at 50°C and 0.904 atm pressure.

Which of the following is the major advantage of using geothermal energy instead of using coal energy? Choice: You will get a brainliest! If your correct! A. More abundant than coal B. Easier to access than coal C. Releases less carbon dioxide D.

Why can equilibrium not be reached in reversible enzymatic rxn?

The nh2cl model consists of balls and sticks. the electrons in the molecule are paired, and each stick represents a valence electron pair. how many sticks do you need?