Asolution of cacl₂cacl₂ in water forms a mixture that is 31.0%31.0% calcium chloride by mass. if the total mass of the mixture is 650.5 g,650.5 g, what masses of cacl₂cacl₂ and water were used?

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

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

When a scientific theory has been tested and proved by the scientific community, it becomes a law