What is the mass of 7 moles of Fe2O3

This is the word geologists use for loose pieces of minerals and rock. The particles are transported by wind, water, or ice, and/or the force of gravity and eventually deposited.

How do the HOX genes in the paddlefish match the HOX genes in human

What substances are used as moderators in a nuclear reactor? A. carbon and water B. liquid sodium and water C. plutonium and neptunium D. cadmium or other metals ansewer is A. carbon & water

What are synthetic elements

A chemist weighed out 65.8 g of potassium. Calculate the number of moles of potassium she weighed out. Round your answer to 3 significant digits.

Identify the spectator ions in the following complete ionic equation. 2k (aq) s2 - (aq) pb2 (aq) 2no-3 (aq) →pbs (s) 2k (aq) 2no-3 (aq) express your answers as ions separated by a comma.

4. A bird left its post and flew in a triangular path. It flew 21 yards south, 72 yards east and 75 yards diagonally to end back at the post. Is it a right triangle?

Condension occurs in the inside of your windows in Winters, why?

How can you use Hess's law to determine a reaction's enthalpy?

7. How much energy in KJ is released when 15.0 g of steam at 100.0 degrees Celsius is condensed and then frozen to ice at 0.0 degrees Celsius?