Chemistry Final

Which of the following is NOT an example of matter?

• air

• heat

• smoke

• water vapor

The study of chemicals that, in general, do not contain carbon is traditionally called what type of chemistry?

• biochemistry

• inorganic chemistry

• physical chemistry

• analytical chemistry

An example of extensive property of matter is _______.

• termperature

• pressure

• mass

• hardness

___________ are the smallest unit of an element that maintains the properties of that element.

• Atoms

• Elements

• Compounds

• Mixtures

Tags

NGSS.MS-PS1-1

A _________________ mixture is one where the substances are evenly spread throughout.

• heterogeneous

• homogeneous

• pure substance

What is an example of a mixture?

• solid iron

• ice

• soil

• table salt

A chemical change occurs when a piece of wood ______

• is split

• is painted

• is burned

• is varnished

The expression of 30902 km in scientific notation is ________.

• 30.902 x 10^-3 km

• 30.902 x 10³ km

• 3.0902 x 10⁴

• 3.0902 x 10^-4

• 3.92 x 10^-4

How many significant figures does the following number have: 0.002040

• 6

• 4

• 3

• 2

How many significant figures does the following number have: 1740200

• 4

• 7

• 3

• 5