A 24.63 gram sample of cobalt is heated in the presence of excess oxygen. A metal oxide is formed with a mass of 31.32 g. Determine the empirical formula of the metal oxide.

1) these are barrel shaped microtubules in most animal cells, that organize the spindles during cell division

Brainliesttt me asap! the below reaction can be categorized as more than one type of reaction. which reactions are these, and what are the types of reactions?

Seltzer water is created by placing water under pressure with carbon dioxide gas. which of the following statements best describe seltzer water: a. the solution will be slightly acidic b. the solution will be slightly basic. the solution will be strongly acidic. d. the solution will be strongly basic. e. the solution will be neutral