How many moles of ammonia would be required to react exactly with
0.578 moles of copper(II) oxide in the following chemical reaction?
2 NH3(g) + 3 Cuo(s) — 3 Cu(s) + N2(g) + 3 H2O(g)

1. list three scientific reasons cockroaches may fly.

Ageologist determines that a sample of a mineral can't be scratched by a steel nail but can be scratched by a masonry drill bit. based on this information, the sample mineral has to be softer than a. orthoclase. b. fluorite. c. apatite. d. corundum.

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.