A nurse measures the volume of a drop of medicine. The volume of 1 drop of medicine is 1.39 mL. What is the volume in deciliter of 100 drops of medicine?

The density of water is approximately 1/13.5 the density of mercury. What height would be maintained by a column of water inverted in a dish of water at sea level?

What is the mass of a sample of pure gold with volume of 4.58cm?

Calculate the percentage by mass of oxygen in (nh4) 2co3

Which of these equations is balanced? a. Zn + 2HCl - - > ZnCl2 + H2 b. S8 + 24F2 - - > 8SF6 1. a 2. b 3. a and b 4. neither

How are linear, trigonal planar, and bent molecular shapes similar? How are they different?

A certain reaction has an activation energy of 51.64 kj/mol. At what temperature Kelvin will the reaction be 5.50 times faster than it did at 343K?

What allows electrons to flow between electrodes in an electrochemical cell? a - conducting wire b - salt bridge c - electrolyte solutions d - battery

How does the number of molecules in 1 mol of oxygen compare with the number of molecules in 1 mol of nitrogen? 1 mol of oxygen has fewer molecules. 1 mol of oxygen has more molecules. Each sample has the same number of molecules.

What types of elements tend to combine to form molecular compounds?

Removing salt from water would decrease its what