Which of the following is an example of an extrusive igneous rock? A. rhyolite B. granite C. andesite D. coal

How is solute concentration related to the solute-solvent interactions and the rate at which the solute dissolves? A) Decreasing the solute concentration increases the solute-solvent interactions and decreases the rate at which the solute dissolves.

A 5ml saturated sample of borax was collected at 49.2 degrees C. it required 18.23ml of 0.2222 M HCl to titrate. calculate the Ksp for this sample

Which of the following has a negative charge? A. electron B. neutrino C. gamma rays D. alpha particles

What is the change in electrons for nitrogen in the following reaction? S + NO3 - - > SO2 + NO A. Gain 2 electrons B. Gain 3 electrons C. Lose 2 electrons D. Lose 3 electrons

Does the law of inertia apply to both moving and non-moving objects

Given the energy levels of electrons in a hydrogen atom (table), rank the photons emitted by the following electron transitions from longest to shortest wavelength. n=4 to n=3 n=4 to n=2 n=2 to n=1 n=3 to n=1

Define/differentiate a. enzyme b. active site c. substrate d. enzyme vs Isoenzyme e. Cofactor vs Covalent Modulators vs Coenzyme e. allosteric inhibition vs allosteric activation

A solution has a hydrogen ion (or hydronium ion) concentration of 1.00 * 10-9 M. What is the pH of the solution? 7.5 8.0 9.0 8.5

Is there DNA in food? and how would you know?

Complete the reactions to show how butanoic acid may be converted to phenyl propyl ketone.