What happens when an atom is exposed to an energy source such as electricity?

True or false. the "particles" of gases are actually atoms, or molecules.

Justine observed that the water level in a dish placed on the window sill decreased after a few days, and vapor formed. What best explains that she observed a physical change? Vapor can be easily condensed back to form water.

The Ability of a material to be drawn into a thin wire is called?

When Al (NO3) 3 is separated into its ions, how is it written?

How many moles of MgS2O3 are in 173 g of the compound?

Describe how you could determine the specific heat of a sample of a solid substance. You may assume that the substance does not react with water.

Combustion of 7.54 g of liquid benzene (C6H6) causes a temperature rise of 50.3°C in a constant-pressure calorimeter that has a heat capacity of 6.27 kJ/°C. What is ∆H for the following reaction? C6H6 (l) + O2 (g) → 6CO2 (g) + 3H2O (l)

What is the compound name for the ion chemical formula AgBr?

Which principal energy level of an atom contains an electron with the lowest energy? A) n=1 B) n=2 C) n=3 D) n=4

Are erasers made from rubber?