Na2O + H2 --> 2Na + H2O 8.6 g of sodium oxide (Na2O) are reacted with 5.6 g of hydrogen (H2) according to the equation above.

Identify the limiting reactant and excess reactant and give the theoretical yield of H2O produced (in grams).

When a scientific theory has been tested and proved by the scientific community, it becomes a law

The ozone molecule o3 has a permanent dipole moment of 1.8×10−30 cm. although the molecule is very slightly bent-which is why it has a dipole moment-it can be modeled as a uniform rod of length 2.5×10−10 m with the dipole moment perpendicular to the axis of the rod. suppose an ozone molecule is in a 8000 n/c uniform electric field. in equilibrium, the dipole moment is aligned with the electric field. but if the molecule is rotated by a small angle and released, it will oscillate back and forth in simple harmonic motion.what is the frequency f of oscillation?

Which statement best describes isomers? a. isomers are alcohols that have the same functional group. b. isomers have at least one carbon-carbon double bond. c. isomers have the same molecular formula but different structural properties.