GenChem

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

• Physics

• Chemistry

• Biology

• Astronomy

Which of the following is a pure substance?

• Air

• Saltwater

• Oxygen

• Coffee

What type of property depends on the amount of matter in a sample?

• Intensive

• Extensive

• Chemical

• Physical

Which of the following is an example of a chemical property?

• Melting point

• Density

• Flammability

• Boiling point

What is an example of a homogeneous mixture?

• Oil and water

• Orange juice with pulp

• Salt dissolved in water

• Sand and iron fillings

Which method is best for separating sand from water?

• Filtration

• Distillation

• Evaporation

• Chromatography

What is the SI unit of length?

• Meter

• Gram

• Second

• Mole

Who discovered the electron?

• John Dalton

• J.J. Thomson

• Ernest Rutherford

• Niels Bohr

What experiment led to the discovery of the nucleus?

• Cathode Ray Tube Experiment

• Gold Foil Experiment

• Oil Drop Experiment

• Plum Pudding Model

What is the charge of a neutron?

• Positive

• Negative

• Neutral

• Variable