How many moles are equal to 2.09 x 10-7 atoms of Sodium?

The decomposition of ammonia to nitrogen and hydrogen on a tungsten filament at 800°C is independent of the concentration of ammonia at high pressures of ammonia. What is the order of the reaction with respect to ammonia?

When an aqueous solution of sodium sulfate is electrolyzed, a gas is observed to form at the anode. the gas is?

Which of these is the second weakest of the four fundamental forces? Electromagnetic Gravity Strong nuclear Weak nuclear

If a solution has virtually virtually no hydrogen ions, what type of pH does it have?

Choose the correct statement below regarding heat and temperature. The temperature of an object is related to its kinetic energy - increasing the temperature increases the mass in the kinetic energy equation.

How much ice at a temperature of - 17.5 ∘C must be dropped into the water so that the final temperature of the system will be 31.0 ∘C?

Why does a gas fill completely the vessel in which it is kept?

Individuals who work full time and those who work part-time enjoy basically the same number of paid leave benefits. True False

There is a large increase in ionization energy between the second and the third ionization energies of a metal. What kind of ion is the metal likely to form? Include the charge in your answer.

Which of the following are true statements about equilibrium systems? For the following reaction at equilibrium: CaCO3 (s) ⇌ CaO (s) + CO2 (g) adding more CaCO3 will shift the equilibrium to the right.