Can someone please help?? I really don't want to fail...

profilethatgirlme
Home>Homework Answsers>Chemistry homework help
1.  

What is the mass of 114 mL of ether if the density of ether is 0.70 g/mL?

 
 
[removed] A.
 
 

6.14 x 10-3 g

 
 
[removed] B.
 
 

3.5 x 10 -3 g

 
 
[removed] C.
 
 

79.8 g

 
 
[removed] D.
 
 

162 g

 
 
Points Possible:2.00
 
2.  

If a liter of water is cooled from 50 °C to 30 ºC, what happens to its volume?

 
 
[removed] A.
 
 

The volume decreases.

 
 
[removed] B.
 
 

The volume increases.

 
 
[removed] C.
 
 

The volume first increases, then decreases.

 
 
[removed] D.
 
 

The volume first decreases, then increases.

 
 
Points Possible:2.00
 
3.  

As the density of a substance increases, the volume of a given mass of that substance _____.

 
 
[removed] A.
 
 

fluctuates

 
 
[removed] B.
 
 

is not affected

 
 
[removed] C.
 
 

decreases

 
 
[removed] D.
 
 

increase

 
 
Points Possible:2.00
 
4.  

A 45.0 g silver bar is cut into three equal pieces. How does the density of each piece compare to the density of the original silver bar?

 
 
[removed] A.
 
 

The three pieces would have a higher density than the original silver bar.

 
 
[removed] B.
 
 

The three pieces would have a lower density than the original silver bar.

 
 
[removed] C.
 
 

The three pieces would each have different densities than the original silver bar.

 
 
[removed] D.
 
 

All densities are equal.

 
 
Points Possible:2.00
 
5.  

What equation is used to determine the density of an object?

 
 
[removed] A.
 
 

density= volume/mass

 
 
[removed] B.
 
 

density= mass/volume

 
 
[removed] C.
 
 

density=mass x volume

 
 
[removed] D.
 
 

volume= density/mass

 
 
Points Possible:2.00
    • 12 years ago
      • 0
    Report issue
    Answer(1)
    profile
    Prof.aishikwww2
    5.0 (184)
    5.0 (118)
    Chat

    Purchase the answer to view it

    blurred-text
    NOT RATED
    Bids(0)