4Fe + 3O2à 2Fe2O3 is a balanced equation. What is the charge on each iron (Fe) ion in hematite (Fe2O3) ?

A. + 1

B. + 2

C. + 3

D. + 4

What characteristics of a planet determine the strength of its gravitational force on other objects? A. diameter of the planet and its location in space B. the number of moons that the planet has C.

What determines how much thrust is generated in a solid fuel rocket engine at any given time?

According to locke if the government does not protect our 3 natural rights what are the citizens supposed to do

What type of energy drives the windmill?

Briefly describe the water cycle

The atom of which element is bigger than an atom of calcium? - Be (Beryllium) - Sr (Strontium) - Sc (Scandium) - Mg (Magnesium)

Draw the hydration shells that form around a potassium ion and a chloride ion when potassium chloride (kcl) dissolves in water. label the positive, negative, and partial charges on the atoms.

If each vitamin has 0.8 grams of calcium, how much calcium will 2.6 vitamins have?

How many grams of silver chromate are there in 0.0375 moles?

What are two type of minerals?