Chem Com Unit 3-A vocab

The quantity of greenhouse gases emitted based upon individual activities; measured in kilograms of carbon dioxide

• volume

• carbon footprint

• density

• distillation

Fossil fuels include all of the following except

• coal

• natural gas

• solar energy

• petroleum

The amount of matter in an object, divided by the amount of space that object occupies is known as its

• mass

• volume

• density

• viscosity

A property that can be observed or measured without changing the identity of the sample of matter is a

• boiling point

• density

• viscosity

• physical property

• all of the choices either fit the definition or are examples of the definition.

A molecular compound composed only of carbon and hydrogen atoms is known as a hydrocarbon. These compounds are found in fossil fuels.

• True

• False

This mixture of hydrocarbons, from which we can derive gasoline, kerosene, diesel fuel, petrochemicals, wax and asphalt is called

• crude oil, when it is unrefined

• petroleum when it has been removed from the earth and is being processed

• Both answers are correct

The resistance to flow

• density

• fractions

• distillation

• viscosity

A process that separates liquid substances based on differences in their​ ​_____________________ is known as ​ ​____________________

• mass, boiling point

• boiling point, distillation

• melting point, distillation

• viscosity, boiling point

Of the following substances, which one would be the most viscous?

• water

• sand

• orange juice

• maple syrup

When we analyze petroleum use worldwide, not only do we look at population sizes, but also at how much is used by that region. This is also known as

• distillation

• consumption

• distribution

• fractions