Although iodine is shinny ,but it is nonmetal​

If 22.5 liters of oxygen reacted with excess of hydrogen, how many liters of water vapor could be produced?

Amixture that has two or more substances that are spread out evenly is called a. compound b. heterogeneous c. substance d. homogeneous

With the largest atoms and the smallest number of valence electrons and with the smallest atoms and the greatest number of valence electrons are the most reactive. a. nonmetals; metals b. nonmetals; transition elements c. transition elements; metals d. metals; nonmetals