What are the products of the

alkali metals in a reaction with:

oxygen, water, halogen?

Explain why the cycling of nutrients is referred to as a 'biogeochemical' cycle. Use an example to explain your answer.

In the reaction, Al2O3 + __HCl → 3H2O + 2AlCl3, what coefficient should be placed in front of HCl to balance the reaction? 1 2 3 6

What will most likely occur if sulfur forms an ionic bond with another element? Sulfur will accept electrons. Sulfur will donate electrons. Sulfur will become a positive ion. Sulfur will become less stable.

Example of a food web

What is the difference between radiant energy, sound energy and electric energy?

A team of scientists have identifyed a group of fish in the San Franscisco Bay that have never been seen in this location before. These fish are commonly found in the waters off of Japan. We would call these fish A. native species B.

F chlorine gas is bubbled through an aqueous solution of sodium iodide, the result is elemental iodine and aqueous sodium chloride solution. What kind of reaction took place?

Which of the following is the best example of a hypothesis? Glass breaks when you throw a rock at it. If three or more pounds of pressure is placed on glass, then it will break. If I push hard on glass it will break.

Criteria for evaluating alternative solutions includes all of the following except: a. Appropriateness b. Prediction c. Adequacy d. Efficiency

When filling degenerate orbitals, electrons fill them singly first, with parallel spins is known as When filling degenerate orbitals, electrons fill them singly first, with parallel spins is known as: A. Hund's rule B.