Which statements did both aristotle and ptolemy assumewhich statements did both aristotle and ptolemy assumewhich statements did both aristotle and ptolemy assume

9. write the chemical equation for the following word equations. include symbols for physical states in the equation. a. solid zinc sulfide + oxygen gas -> solid zinc oxide + sulfur dioxide gas b. aqueous hydrochloric acid + aqueous barium hydroxide -> aqueous barium chloride + water

Name the element in group 17, period 2. (periodic table)

What is a difference between a mixture of elements and a mixture of compounds