Which process is an example of a physical change 1. Burning if wood 2. Rusting of iron 3. Melting of ice 4. Explosion of gunpowder.

In which layer of earth do most earthauakes occur a_ inner core b_outer core c_mantle d_crust

What is the mass of 0.46 mil of mgcl2

In a ni-cd battery, a fully charged cell is composed of nickelic hydroxide. nickel is an element that has multiple oxidation states. assume the following proportions of the states: nickel charge proportions found 0 0.17 +2 0.3 +3 0.33 +4 0.5 (a) determine the mean of the nickel charge. enter the answer to 2 decimal places.(b) determine the cumulative distribution function of nickel charge.