3Fe + 2O2 → Fe3O4 In this reaction, 200 grams of Fe react with 64 grams of O2. How many grams of Fe3O4 will be produced? A 230 grams B 264 grams C 280 grams D 460 grams

Calculate the wavelength of light with a frequency of 1.89 x 1018 Hz.

A piece of metal is dropped into a solution of acid. Using a sharp probe, the metal is broken into smaller pieces while in the solution. Also while in the solution, some of the metal reacts, producing hydrogen gas.

Two descriptions for a sub-atomic particle are listed below: Description 1: Has a noticeable relative mass Description 2: Located inside the nucleus of an atom Which sub-atomic particle or particles fit these descriptions?

The hydrolysis of phosphoenolpyruvate proceeds with a δg'° of about - 62 kj/mol. the greatest contributing factors to this reaction are the destabilization of the reactants by electrostatic repulsion and stabilization of the product pyruvate by:

If the temperature changes in a chemical reaction, what has occured? A) energy was destroyed B) energy was created C) there was no energy transfer D) energy was transferred

What are some ways that groundwater is used in the United States currently?

Atoms which have lost one electron from their outer shell are called what

What is the relationship between pH and H concentration

Select the correct answer. Consider an atom that has an electron in an excited state. The electron falls to a lower energy level. What effect does that have on the electron? ОА ОВ. The electron releases energy in the form of light.

What is the volume in milliliters of 350 m koh needed to completely neutralize 15.0 ml of a. 250 m h2so4 solution?