Unit 1, Part 1: Introduction to Chemistry

Why is chemistry known as the centeral science

• it provides a baseline for all other natural sciences

• every scientist has to learn chemistry

• it touches all other natural sciences

• all other sciences are based on it

• it was the first natural science developed

The sub-fields of quantum mechanics, thermodynamics, and kinetics fall under which branch of chemistry?

• Physical Chemistry

• Geochemistry

• Biochemistry

• Nuclear chemistry

• Applied Chemistry

Which best describes the field of chemistry?

• the study of subatomic particles

• the study of natural phenomena

• the study of matter and energy

• the study of other sciences

• the study of enviromental degradation

Analytical chemists ____, while applied chemists ____

• analyze matter, solve problems

• analyze matter, study medicine

• study enviromental cheicals, applu physics to chemistry

• analyze DNA, apply chemistry to different scientific fields

• solve problems, analyze matter

What are spme examples of chemistry?

• Nuclear reaction

• biological processes

• all are correct

• fermentation

• chemical reactions

Which feature of evaporating dish makes it effective in the evaportation process?

• The precise fit on the ring stand

• a shallow bottom to increase the surface area of a liquid, leaving the solid behind

• the ability to be heated on a bunsen burner or a hot plate

• the abilitiy to hold ore substances than a test tube

What is the purpose of processing a substance with a mortar and pestle?

• makes measurements more precise

• measures the mass of a substance

• increase the surface area of a substance

• breakes substances in half

when heating a solution, a ___ is the best heating option for highly flammable substances

• bunsen burner

• none of these is an appropriate heat source to heat flammable substances

• microwave

• hot plate

if you need to dispense a preise amount of volume, which instrument would you use?

• gradulated cylinder

• volumentruc flask

• test tube

• burette

which of the following would be best used for swiriling and mixing liquids?

• beaker

• burette

• gradulated cylinder

• erleneyer flask