Iron is found in Earth's crust as several iron compounds. Calculate the mass in kilograms of the amount of each of the following iron compounds that contains 1.0×103kg of iron. Fe2O3 (hematite)

Seltzer water is created by placing water under pressure with carbon dioxide gas. which of the following statements best describe seltzer water: a. the solution will be slightly acidic b. the solution will be slightly basic. the solution will be strongly acidic. d. the solution will be strongly basic. e. the solution will be neutral

When a septic tank backs up a goes in to clean it out

How does the viscosity of magma change as magma cools?