Chemistry Semester 1 Exam

What is the study of matter and the changes that it undergoes?

• applied science

• pure science

• chemistry

• modeling

What do we call the perspective from which we see and interpret all of life?

• a model

• reality

• worldview

• an opinion

Scientific models may be expressed as __________.

• physical representations

• mathematical formulas

• pictures

• all of these

The mass of a crystal as measured on a balance would be an example of __________ data.

• qualitative

• quantitative

• subjective

• deductive

In the year 2000 there were an estimated 18 million chemical compounds, with another estimated 1 million being added each year. Therefore, in the year 2020 there will be 38 million chemical compounds. This is an example of __________ reasoning.

• deductive

• inductive

• neither deductive nor inductive

• faulty

Scientific inquiry begins with __________.

• experimentation

• data

• observation

• proof

Scientists classify matter on the basis of its physical and __________ properties.

• pure

• compound

• homogeneous

• chemical

A homogeneous mixture is also called a(n) __________.

• solution

• pure substance

• compound

• element

Chemical formulas represent __________.

• mixtures

• malleability

• subscripts

• compounds

When water vapor forms dew on the grass, __________ has occurred.

• condensation

• vaporization

• evaporation

• sublimation