What is the number of electrons that can be held in the first orbit closest to the nucleus

As a technician in a large pharmaceutical research firm, you need to produce 300. mL of 1.00 M a phosphate buffer solution of pH = 7.36. The pKa of H2PO4 - is 7.21. You have 2.00 L of 1.00 M KH2PO4 solution and 1.50 L of 1.

If 1.30 g of dry ice (solid carbon dioxide) is placed in an empty balloon, what will be the volume of the balloon at 15.0°C and 740 torr once all of the dry ice has sublimed (i. e., converted to gaseous CO2) ?

Write and balance the equation for the decomposition of aluminum chloride into its elements. phase symbols are optional.

Which is an example of an organism? A. an octopus B. sand granules C. water D. the colors of a feather

List the following in order of increasing length from shortest to longest: a. 0.155 km b. 1.75*105 μm c. 0.160 m d. 165.0 mm e. 1.85*10-4 m

Which of these resources isn't renewable: Sunlight Water Wind Metal

The internal pressure of a cylinder with one ounce of liquid r410a which has been sitting in 100 degree truck

The transfer of from one molecule to another is an oxidation-reduction reaction, or redox reaction.

Banded iron formations were caused by the production of which atmospheric gas? A) Carbon Dioxide B) Water Vapor C) Oxygen D) Nitrogen

3. Which net ionic equation describes this reaction? 3Ca (OH) 2 (aq) + 2FeCl3 (aq) → 3CaCl2 (aq) + 2Fe (OH) 3 (s) 3Ca2 + (aq) + 3OH - (aq) + Fe3 + (aq) → Fe (OH) 3 (s) + CaCl2 (aq) Fe3 + (aq) + 3OH - (aq) + 3Ca2 + (aq) → Fe (OH) 3 (s) + 3Ca2 + (aq)