How many grams of Mg(ClO3)2 are needed to make 1,500 mL of a 2.5 N solution ?

How many moles of air are there in a human lung with a volume of 2.4 l at stp? explain your answer

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

What is the empirical formula of a compound that is 50.7% antimony and 49.3% selenium ?