Claire went for a mile run. Durin the run she produced 5,234,201 J of energy. How many KJ did she produce?

How many moles are in 250 grams of tungsten (w)? * 4.4x10^23 moles 4.2x10^23 moles 0.7 moles 1.4 moles

What is the oxidation state of each individual carbon atom in c2o42−?

Describe the process that was used in this lab to create magnesium oxide, specifically identifying the type of chemical reaction. explain why the product had a higher mass than the reactant, and how this relates to conservation of matter.