Question

I.  Fill in Blank / Matching   Fill in the blanks with the appropriate terms below.  (2 pts. each = 20 pts.)

 

activity                        chemical                      resonance                    polychromatic             empirical

electrons                      evaporation                 emission                      filtration                      filtrate

gas                               hydrogen                     VESPR                       limiting                       liquid  

mass                            mass percent               mole                            molecular                    oxide

absorption                   oxygen                        physical                       precipitate                   precipitation   

monochromatic           Lewis Dot                   supernatant                  periods                        groups

 

 

Many metals react readily with oxygen to form binary ____________ compounds.

 

 

_______________________ is the process by which a solid is formed when its solubility limit in solution has been exceeded.

 

 

One must use the ___________ ratio when determining an empirical formula.

 

 

A ________________ structure is one of a set of molecular models that have identical placement of atoms but different placements of electrons.

 

_____________________ is a model used to determine the distribution of electrons in a molecule.

 

 

After precipitation, the supernatant can be separated from the precipitate by _______________.

 

 

A(n) ________________ property can be determined or observed without changing the chemical identity of the substance.

 

 

___________ periods _________ is a process which describes the transition of an electron from a higher energy state to a lower energy state.

 

 

In Lewis Dot structures dots are used to indicate ___ electrons ______________.

 

 

Spectral radiation composed of a single wavelength is called a____Line ___________ spectra.

 

Answer 1

activity                        chemical                      resonance                    polychromatic             empirical

electrons                      evaporation                 emission                      filtration                      filtrate

gas                               hydrogen                     VESPR                       limiting                       liquid  

mass                            mass percent               mole                            molecular                    oxide

absorption                   oxygen                        physical                       precipitate                   precipitation   

monochromatic           Lewis Dot                   supernatant                  periods                        groups

• Many metals react readily with oxygen to form binary oxide compounds.
• precipitatation is the process by which a solid is formed when its solubility limit in solution has been exceeded.
• One must use the mass percent ratio when determining an empirical formula.
• A resonance   structure is one of a set of molecular models that have identical placement of atoms but different placements of electrons.
• VESPR is a model used to determine the distribution of electrons in a molecule.
• After precipitation, the supernatant can be separated from the precipitate by filtration
• A(n) ________________ property can be determined or observed without changing the chemical identity of the substance.
• ___________ periods absorption is a process which describes the transition of an electron from a higher energy state to a lower energy state.
• In Lewis Dot structures dots are used to indicate ___ electrons ______________.
• Spectral radiation composed of a single wavelength is called monochromatic ___Line ___Hydrogen spectra.