How many grams of oxygen are needed to react with 350.0 g of iron to produce 500 g of Fe2O3

Ozone (O3) number of atoms

What would happen to temperature on Mercury during the day if a sunspot was directly in line with its surface?

What is the main factor in the net driving force for filtration in the glomerulus?

Calculate the molarity of a solution that contains 0.300 moles of csbr in 0.600 l of water.

Select all that apply. Which of the following are interactions between particles in a liquid? ionic bonds covalent bonds van der Waals forces metallic bonds hydrogen bonds

The balanced chemical equation for the combustion of propane is C3H8 (g) + 5O2 (g) →3CO2 (g) + 4H2O (g) C3 H 8 (g) + 5O2 (g) → 3CO2 (g) + 4H2O (g) Which statement is correct about the complete combustion of 3.00 mole of propane, C3H8? a. 12.

Selena is growing geraniums outdoors in a pot. During the day, the temperature in her area averages 22°C (72°F). At night, the temperature has been dropping to around 13°C (55°F). What advice would you give to Selena and why?

How many carbons are in a molecule of hexane?

How does th composition of a mixture of hydrogen and oxygen differ from the composition of a compound containing hydrogen and oxygen?

You are asked to prepare 500 mL 0.250 M acetate buffer at pH 5.00 using only pure acetic acid (MW=60.05 g/mol, pKa=4.76), 3.00 M NaOH, and water. Answer the questions regarding the preparation of the buffer. 1.