Tri 1 Final Exam practice Units 1-4

Match the following

• amount of mass in a given space

• volume

• amount of matter

• density

• amount of space taken up by matter

• Mass

Match the following units to their measurement

• temperature

• liter, L

• mass

• Density

• volume

• kilogram, kg

• g/mL

• Kelvin

What tool is used to measure mass?

• Spring scale

• Electronic balance

• graduated cylinder

• thermometer

Classify each as a physical or chemical change

Groups:

(a) Physical change

,

(b) Chemical Change

• burning wood

• dissolving sugar in water

• reacting with oxygen

• melting ice

• chopping wood

identify each as an element, compound, heterogeneous or homogeneous mixture

• Element

• Salt water

• Homogeneous mixture

• 
• Compound

• chocolate chip cookie

• Heterogeneous mixture

• Nitrogen, N

In which segment of this heating curve is the solid melting?

• A

• B

• C

• D

Answer explanation

During a phase change, the temperature remains the same. Melting occurs during the first horizontal portion of the heating curve.

What is the boiling point of the substance in this heating curve?

• -60 C

• -100 C

• 60 C

• 80 C

Answer explanation

The substance is boiling at segment D. The boiing point temperature is 60C.

Match the following

• Fission

• 
• Fusion

• 
• Nuclear Decay

• 

Electrons are ​ (a)  

Protons are ​ (b)  

Neutrons are ​ (c)  

• negative
• positive
• neutral

Where is most of the mass of an atom located?

• Protons

• Neutrons

• Nucleus

• Electron cloud

Answer explanation

The nucleus contains the protons and neutrons and so it contains most of the mass of an atom. The electrons in the electron cloud have very little mass.