Teniendo en cuenta la teoría de arrhenius identifica cuales de estos compuestos son ácidos y cuáles base Hl
NaCl
Zn(OH)2
Al(OH)2
HNO3
CaCO3
H2S
KNO3

Calculate the molar mass of aluminum oxide (al2o3). express your answer to four significant figures.

Compare and contrast the bohr model and the electron cloud models of the atom.

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?