Pumice is a type of rock formed when gas bubbles are trapped inside of cooling lava. pumice is most often formed when volcanoes erupt violently. what type of rock is pumice? a) extrusive igneous b) intrusive igneous eliminate c) contact metamorphic d) foliated metamorphic

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

Why is nh3 classified as a polar molecule

Consider the directing effects of the substituents on salicylamide and predict the possible structures of the iodination products. which do you think will be the major product?