What is the chemical formula for Aluminum Oxide?

Which of the following is the correct electron configuration for a +2 cation of Vanadium? 

The formation of snow involves the deposition of H2O. Which change describes this process?

Convert 2 femtoseconds to milliseconds. 

Which scientist discovered the neutron?

Consider the calorimetry equation. Using the information in the following problem, set up the equation and include the correct units. *You do not need to solve the problem to set up the equation.  A student finds that the energy transferred to the water from the hot metal Iron rod is 3.14 Joules. The change in temperature of the rod was -9.87 Kelvin. The mass of the Iron rod was 7.04 grams.   *This question will be hand graded

Consider the polyatomic ion Chlorite. Determine the number of protons, neutrons, and electrons in this ion when Cl-37 is used. Fill in the chart.  Total Protons = [p] Total Neutrons = [n] Total Electrons = [r] **Enter a numerical value only. No words.

Calculate the new anion gap and provide an interpretation of the results. 

Preanalytical errors can be prevented by:   Removing air from samples immediately   Placing the sample on ice for at least 20 minutes   Discarding frothy samples   Avoiding use of the femoral artery

For use in ABG syringes, the recommended form of heparin is: