How many moles of iron are there in each of the following?

a.) 2.50 moles of FeO

b.) 8.3 moles of FezO3

c.) 0.45 moles of Fe (OH) 3

d.) 2.7 moles of Fe3O4

What determines the type of atom

Which mix will be homogeneous? A. mixing salt and sand B. mixing food coloring and water C. mixing water and vegetable oil D. mixing carbon dioxide and water

Physical properties in 500 g of butter

The temperature of a 95.4 g piece of Cu increases from 25.0 °C to 48.0 °C when the Cu absorbs 849 J of heat. What is the specifc heat of Cu

Using the solubility of Ca (IO3) 2 that you determined in pure water, calculate the value of Ksp using only concentrations, that is assuming that all activity coefficients are 1.0.

To what chemical reaction class does this reaction belong? 2 mg (s) + o2 (g) 2 mgo (s)

Which best illustrates how particle arrangement changes when solids change into liquids

Express in scientific notation (6.0x10^4) (3.1x10^-1)

How do you measure the mass of a liquid?

Given the following information, calculate the mass for B-11. B-10 has a natural abundance of 19.9 percent, while B-11 has a natural abundance of 80.1 percent. The mass of B-10 is 10.013 amu.