Chapter 1 - Matter and Change Review

An atom is

• the smallest unit of matter that maintains its chemical identity
• the smallest unit of a compound
• smaller than an electron
• always made of carbon

Tags

NGSS.MS-PS1-1

A solid substance is

• always a crystal regardless of its container
• always losing particles regardless of its container
• always frozen regardless of its container
• always the same shape regardless of its container

The branch of chemistry that deals with substances containing carbon is called

• biochemistry
• physical chemistry
• analytical chemistry
• organic chemistry

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NGSS.HS-LS1-6

All known elements are organized into a chart known as the 

• element table
• metal-nonmetal table
• group table
• periodic table

Which of the following is an example of a homogeneous mixture?

• air
• marble
• orange juice
• raw milk

A homogeneous mixture is one that

• cannot change state easily
• is uniform in composition
• contains only one element
• acts as a solvent

Noble gases are in Group 18, and are best known because they are 

• rare
• good conductors
• unreactive
• lanthanides

Which of the following changes is a chemical change of matter?

• water boiling to produce water vapor
• vinegar combining with baking soda to produce carbon dioxide
• ice melting to produce water
• liquid silica solidifying to form glass

Tags

NGSS.MS-PS1-2

The two most important properties of all matter are

• being malleable and ductile
• taking up space and having mass
• being brittle and hard
• the ability to carry an electric current well and to hold electric charge

What is the difference between a mixture and a compound?

• All mixtures have a uniform composition. 
• Mixtures can be separated by physical processes. 
• All mixtures are heterogeneous
• Mixtures are made of at least two different elements.