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

What will happen as the South Pole magnet is moved closer and closer to the South Pole of another magnet

Josie sees lightning off in the distance. A few seconds later she hears thunder. What can Josie conclude? A. Sound waves do not travel long distances. B. Light waves travel faster than sound waves. C. Sound waves are weaker than light waves. D.

4NH3 + 5O2-> 4NO + 6H2O How many molesof NO are formed if 824g of NH3 react?

What chemical processes are used to make artificial sweetener

State the aufbau principle.

A 10 chunk of metal has a specific heat of 0.25 J/g ºC. The temperature is changed from 10ºC to 45ºC. How much heat is required?

In this reaction what is the correct coefficient for sodium chloride? pb (no3) 2? nacl → pbcl2? nano3

Classify each of the following as a path function or a state function. work energy distance traveled enthalpy heat

Flammable materials like alcohol should never be dispensed or used near True or False

The diagram to the right shows energy for two reactions, A and B. Which reaction has the higher Gpx?