Chemistry final test chap 1+2

Solids have a __________ shape and are not appreciably __________. 

• definite, compressible 

• definite, incompressible 

• indefinite, compressible 

• indefinite, incompressible 

• sharp, convertible 

__________ is the chemical symbol for elemental sodium. 

• S

• W

• So

• Na

• Sn 

If matter is uniform throughout, cannot be separated into other substances by physical processes, but can be decomposed into other substances by chemical processes, it is called a (an) __________. 

• heterogeneous mixture 

• element

• homogeneous mixture 

• compound 

• mixture of elements 

The symbol for the element potassium is __________. 

• Pt

• P

• K

• S

• Ca

The symbol for the element magnesium is __________. 

• Rb

• Mn

• Ne

• Si 

• Mg

The initial or tentative explanation of an observation is called a(n) __________. 

• law

• theory

• hypothesis 

• experiment

• test 

A concise verbal statement or mathematical equation that summarizes a broad variety of observations and experiences is called a(n) __________. 

• law 

• theory 

• hypothesis 

• experiment 

• test 

A separation process that depends on differing abilities of substances to form gases is called __________. 

• filtration 

• solvation 

• distillation 

• chromatography 

• all of the above are correct 

The SI unit for mass is __________. 

• kilogram 

• gram 

• pound 

• troy ounce 

• none of the above 

A one degree of temperature difference is the smallest on the __________ temperature scale. 

• Kelvin 

• Celsius 

• Fahrenheit 

• Kelvin and Celsius 

• Fahrenheit and Celsius