All physical changes can be identified at the macroscopic level? True or false

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.

Which rate indicates the number of children that would be born per woman if she were to live to the end of her child bearing years

What is the correct lewis dot structure for arsenic?