CHEM 1105 Exam 1 Review

Why is "mass" used to measure matter instead of "weight"?

"Matter cannot be created or destroyed" is an easy way to remember the Law of

Carbon and oxygen can react to create carbon monoxide (CO) or carbon dioxide (CO2). This demonstrates the Law of

The elements in Group 17 (7A) on the periodic table are also called the

Mass is a physical property.

A certain type of steel has a density of 8.1 g/mL. What is the mass of a 100 mL chunk of this steel?

Which science is primarily concerned with the study of matter and its changes?

Which is a chemical property?

Heptane always consists of 84% carbon and 16% hydrogen. This illustrates the Law of

Nitrogen is element number 7. How many protons are in the isotope nitrogen-15?

Changing the number of neutrons in an atom creates a new

Nitrogen is element number 7. How many neutrons are in the isotope nitrogen-15?

Green chemistry:

Which of the following elements is a nonmetal?

Changing the number of electrons in an atom creates a new

Changing the number of protons in an atom creates a new

The ability to rust is a physical property.

A can of sparkling water lists two ingredients: carbonated water and lime flavor. This could be called a:

The elements in Group 2 (2A) on the periodic table are also called the

The elements in Group 18 (8A) on the periodic table are also called the

One mole of carbon is equal to

Length is a physical property.

Which is the best definition of a molecule?

Flammability is a physical property.

Compared to the mass of the nucleus of an atom, the mass of an electron is

The mass of a proton is about the same as the mass of a neutron

A liquid has a boiling point of 178 degree C. What is the temperature in Kelvins?

Which of the following elements is a metal?

Dalton's Atomic Theory did NOT include which of the following?

The elements in Group 1 (1A) on the periodic table are also called the

The ancient Greeks believed in four basic elements. Which of the following was NOT one of the four?