If an isotope of oxygen (O) has 1 less neutron, how many electrons does it have?

and

If an isotope of sodium (Na) has 2 extra neutrons, what is it's atomic weight?

How many miles of tungsten atoms are there in 6.02x10^24 atoms of tungsten

Why is a system for naming compounds necessary?

What is the definition of "molecular compound?"

Which is true of chemicals? A. Things containing chemicals always cost a lot of money. B. Chemicals are never dangerous. c. Chemicals are in many substances in a home. D. Chemicals are rarely found on Earth.

What is the total mass of a mixture of 3.50x10^22 formula units na2so4, 0.500 mol h2o, and 7.23 g agcl?

Substance that undergoes a change in a chemical reaction is a. a product c. a reactant. b. a chemical. d. an enzyme.

List the number of protons, neutrons, and electrons in Iodine-127. (atomic number is 53)

At approximately what temperature will 40g of argon gas at 2 atm occupy a volume of 22.4L a) 600K b) 550K c) 270K d) 140K

Why does light that passes through our windows at home not display the beautiful colors

What three relationships are true at equilibrium