One nucleus contains 31 protons and 40 neutrons. Another nucleus contains 31 protons and 41 neutrons. What can you conclude about the identity of these nuclei?

You recently discovered a new element, and find that this particular element has one electron in its outer energy level. what would you expect will happen to an atom of this element if placed in water?

Buckminsterfullerene is an allotrope of carbon that is found in: A. wood B. pencil lead C. gasoline D. soot

A steeper curve on a reaction rate plot corresponds to: a. higher temperature and higher concentration conditions c. larger pieces of reactants b. a gmore endothermic reaction d. a reaction in equilibrium

The double bond between a carbon atom and two oxygen atoms (a molecule of carbon dioxide) has two characteristics. what are they?

How are the different types of electromagnetic waves organized?

How are large polymers formed?

The parts that are either directly or indirectly related to each other in a system are known as what? A) the flow B) the boundary C) the components D) the input

Which bond is most polar?

4. Calculate the wavelength of radiation with a frequency of 8.0 x 104 Hz.

Two glasses labeled A and B contain equal amounts of water at different temperatures. Maya put a drop of blue dye into each of the two glasses.