Midpoint B2 Review

Jack has a rock. The rock has a mass of 14g and a volume of 2cm³. What is the density of the rock?

• 7 mL
• 7 g/cm³
• 28 g/cm³
• 1/7 g/cm³

Tags

CCSS.HSG.MG.A.2

Why do the liquids form different layers?

• They have different densities.  
• They have different masses.  
• They have different volumes.  
• They are different temperatures.  

If an object has a density of .6 g/mL and you put it into water, will it sink or float?  

• sink
• float

Tags

NGSS.MS-PS2-2

If an object has a density of 3.6 g/mL and you put it into water, will it sink or float?  

• sink
• float

The compound sucrose has a chemical formula of C12H22O11. How many elements are in one molecule of sucrose?

• 3

• 12

• 22

• 45

Tags

NGSS.MS-PS1-1

An element contains

• one kind of atom

• two or more kinds of atoms

• one kind of molecule

• two or more kinds of molecules

Tags

NGSS.MS-PS1-1

Which of the following is a noble gas?

• hydrogen

• carbon dioxide

• argon

• oxygen

Which of the following is a compound?

• N

• Na

• CO

• Ca

Tags

NGSS.MS-PS1-1

What type of property describes how a substance reacts when mixed with another substance?

• physical property

• chemical property

Tags

NGSS.MS-PS1-2

Which of the following are physical properties? (select all correct answers)

• reaction to acid

• number of bonds with hydrogen

• electrical conductivity

• density