Intro to chemistry

In science, theory is closest in meaning to ge

• guess

• explanation

• hypothesis

• study

Why is Chemistry sometimes called the central science

• Chemistry studies the center of atoms

• Chemistry has many different branches

• Chemistry is important to many other sciences

• Chemistry is studied in between biology and physics

Which of these is another word for substance?

• mass

• weight

• chemical

• matter

Suppose a scientist is working to develop a new waterproof, breathable fabric for hiking boots. This is an example of

• biochemistry

• pure research

• theoretical chemistry

• applied research

Physical Chemistry

• Measures the level of lead in blood

• study non-carbon-based chemicals in rocks

• Investigate changes that occur as food is digested in the stomach

• Explain the transfer that occurs when ice melts

Which term is defined as the difference between an experimental value and an accepted value

• accuracy

• precision

• error

• percent error

What are the SI base units of temperature?

• Kg

• degree Celsius

• Kelvin

• degree Fahrenheit

The density of water is 1.0g/mL. What is the mass of 2.0 L of water?

• 5.0 Kg

• 0.002 Kg

• 2.0 Kg

• 0.50 Kg