Chapter 2 Classifying Matter

The formula for density is ?

• D = volume X mass

• D = mass/volume

• D = volume/mass

• D = matter X speed

The two major branches of physical science are ?

• Chemistry & Biology

• Earth Science & Physics

• Chemistry & Physics

• Math and Science

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Match the following

• heterogeneous

• Is made of two or mores substances, not chemically combined.

• element

• Is well mixed and will NOT separate easily.

• homogeneous

• Is made of two or more substances, chemically combined.

• mixture

• Is made of only one type of element.

• compound

• Not well mixed and will easily separate

Anything that has mass and takes up space.

• mass

• density

• volume

• matter

Which of the following is NOT a common state/phase of matter we deal with everyday?

• solid

• liquid

• gas

• plasma

Which of the following is NOT a common category that mass is classified to?

• element

• compound

• mixture

• none of these

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The study of matter and how it changes is called?

• physics

• chemistry

• biology

• algebra

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Pure substances can be considered to be:

• a compound

• an element

• an element or compound

• a compound and a mixture

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Which of the following choices are PHYSICAL properties? ​ ​ ​ ​ ​ ​ (a)   ​ (b)   ​ (c)  

• color
• density
• solubility
• reactivity
• radioactivity

Which of the following is a heterogeneous mixture? ​ (a)  

• different candy in a bowl
• coffee
• gold
• salt(NaCl)