Describe bohr's contribution to the atomic model

The two naturally occuring isotopes of chlorine are 35cl and 37cl. based on the average atomic mass of cl (35.5 amu), what is the approximate natural abundance of 35cl?

What type of element has properies unlike metal?

Phosphofructokinase is a four‑subunit protein with four active sites. Phosphofructokinase catalyzes step 3 of glycolysis, converting fructose‑6‑phosphate to fructose‑1,6‑bisphosphate. Phosphoenolpyruvate (PEP) is the product of step 9 of glycolysis.

If 12.2 g of lithium reacts with 12.2 g of oxygen what is the theoretical yield of the reaction in grams

What is the molality, m, of an aqueous solution of ammonia that is 12.83 M NH3 (17.03 g/mol) ? This solution has a density of 0.9102 g/mL.

The heart is an example of which level of organization within an organism? O cell organ tissue organ system O O

NaOH+HCl--> NaCl+H2O what is the total number of grams of H2O produced when 116 grams of the product, NaCl, is formed?

Is a sample of liquid nitrogen more dense than a sample of nitrogen gas

You have a balloon containing 1 L of air at STP in a vacuum chamber. What will the volume of the balloon be when you reduce the pressure by half and increase the temperature to 373 K?

Which method will correctly determine whether the forces on an object are balanced or unbalanced? A. Multiply the forces in the horizontal direction by the forces in the vertical direction. B.