How do you determine if something is an atom or ion?

How many grams are in 1.0 moles of baking soda?

This is energy that is transferred by the movement of electrons through a conductor: the electrons create a current.

Is nickel a compound

Which of these substances has a formula incorporating a triple bond? 1. H2O 2. NH3 3. HOF 4. C2Cl4 5. C2F4 6. H2CO 7. HOI 8. H2S 9. H2Se 10. C2H2

A cube of gold-colored metal with a volume of 54 ml has a mass of 980 grams. the density of pure gold is 19.3g/ml. Is the metal pure gold? why?

A 2.00 L container of gas has a pressure of 1.00 atm at 300 K. The temperature of the gas is halved to 150K, and the measured pressure of the same 2.00 Liter sample is 0.420 atm.

How many moles of ZnCl, will be produced from 23.0 g of Zn, assuming CuCl, is available in excess?

Glaciation in Alaska is a result of interactions between which of the following "spheres"? Check all that apply. A. biosphere B. exosphere C. geosphere D. cryosphere E. atmosphere F. hydrosphere

In the following equation: FeCl3 + O2 = Fe2O3 + Cl2, what is the limiting reactant if 4 moles of FeCl3 react with 4 moles of O2?

What are some special effects you can make with dry ice?