5.07 Law of Conservation Mass Activity

Vinegar is commonly sold as a 5 percent (v/v) solution of acetic acid in water. This measurement means which of the following?

A compound is found to contain 54.5% carbon, 9.1% hydrogen, and 36.4% oxygen. It has a molar mass of 135 g. What is the molecular formula?

What will happen if a farmer used to much fertilizer?

Using a spring as an example, explain the compressions and rarefactions of a wave.

A great white shark has resided at a depth where the pressure is 16 atm. If the initial volume of its swim bladder is 4 L, what would the new volume be if it surfaces where the pressure is 2 atm

Which of the following words correctly describes CO2? Select all that apply A. Its a substance b its a compound c its a element D its a mixture

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?