What are physical combinations of different pure substances that can be separated into their original components by physical means? a. mixtures b. elements c. molecules d. compounds

Here’s one way to follow the scientific method. place the missing steps in the correct position in the process

Which type of fossil does this image depict?

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.