. Complete and balance each of the following half-reactions (steps 2–5 in half-reaction method): (a) Sn4+(aq)⟶Sn2+(aq) (b) [Ag(NH3)2]+(aq)⟶Ag(s)+NH3(aq) (c) Hg2Cl2(s)⟶Hg(l)+Cl−(aq) (d) H2O(l)⟶O2(g) (in acidic solution) (e) IO3−(aq)⟶I2(s) (in basic solution) (f) SO32−(aq)⟶SO42−(aq) (in acidic solution) (g) MnO4−(aq)⟶Mn2+(aq) (in acidic solution) (h) Cl−(aq)⟶ClO3−(aq) (in basic solution)

If the density of water is 1.0 g/cm3, which of these materials would float in water, based on their densities? check all that apply. aluminum cork iron lead wax

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?

An unknown insoluble substance displaced the water shown. it's mass is indicated on the triple beam balance. mass = a. 694 b. 693.5 c. 693.0 d.693.8