Write the formula for the polyatomic ion in NaNO3. Express your answer as an ion.

B. How many g of O 2 are needed to react with 16.5 Na?

What is the average distance between oxygen molecules at stp?

What factors slowed the rate at which substances dissolve in water science fair project?

What is [H30+] in a solution with a pH of 10.4?

Dinitrogen monoxide gas decomposes to form nitrogen gas and oxygen gas. How many grams of oxygen are formed when 10.0 g of dinitrogen monoxide decomposes?

How do frogs regulate the pressure inside their head while swimming?

Which of the following is not a characteristic of electromagnetic light waves?

Two identical vessels are filled, at the same temperature and pressure, with different gases. One is filled with hydrogen and the other with carbon dioxide. Which statement is correct? a. Carbon dioxide molecules will have inelastic collisions. b.

If Plank's constant is 6.6 x 10 (-34) J/Hz, then what is the approximate frequency of a photon having an energy of 3 x 10 (-19) Joules?

Do all organisms perform meiosis?