In order to allow groundwater to easily pass through the subsoil,

The empirical formula that contains 120 g of carbon and 30.3 g of hydrogen

State Hund's rule. Choose one: A. An attraction between two electrons occurs due to vibrations in the crystal lattice. B. Each electron goes into the lowest-energy orbital available. C.

14.7 grams of magnesium reacts completely with 9.7 grams of oxygen to form magnesium oxide (MgO). What is the percent composition of the magnesium oxide?

What is the passage from the mouth to the larynx and esophagus? •pharynx •trachea •bronchi •alveoli

Name three things in everyday life that are periodic.

How many outmost electrons do lithium and potassium have

Which of the following is a heterogeneous mixture Air Salt water Steel Soil I think it's soil but I'm not positive

When 40.5 g of Al and 212.7 g of Cl2 combine in the reaction: 2 Al (s) + 3 Cl2 (g) - -> 2 AlCl3 (s) b) How many moles of AlCl3 are formed?

Which factor does not influence the rate of a chemical reaction? A. the concentration of reactants B. the surface area of reactants C. the presence of a catalyst D. the volume of the container in which the reaction occurs

Air currents move objects in the air. Explain how a convection current might affect the flight of a hot air balloon