Element x has two naturally occurring isotopes, 65x (isotopic mass 65.0234 amu, abundance 47.78%) and 67x (isotopic mass 67.1396 amu, abundance 52.22%). calculate the atomic mass of element x.

How much energy is made when a pice of wood burns. how do you know

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.

If a simple machine aduces the strength of a force, what must be increased? the speed of the input force the work the simple machine performs the size of the simple machine the distance over which the force is applied