1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
GaryK [48]
3 years ago
5

What is the density of an object whose mass is 142.5 g and whose volume is 7.5 mL?

Chemistry
2 answers:
rosijanka [135]3 years ago
8 0
D=19 mL hope this helps
guajiro [1.7K]3 years ago
6 0

Answer:

19g/mL

Explanation:

D=m/v

D=142.5/7.5

D=19 g/mL

You might be interested in
A river carries pieces of granite from a mountain to the sea.
Inessa [10]

Answer:

The Granite is eroded, weathered, and is being transported away. The Granite will then be deposited into a lake or a sea. This could also go to help form a new sedimentary rock.

Explanation:

5 0
3 years ago
Which statements correctly describe thermal energy in a block of ice, a glass of liquid water, and a container of steam?
DanielleElmas [232]

Answer:

Steam always has more thermal energy than ice.

Explanation:

6 0
4 years ago
Need help with chemistry problem
sukhopar [10]

Answer:

b option sir sidd dichhi good book goo

6 0
2 years ago
Which gas will effuse at the rate closest At a particular pressure and temperature, nitrogen gas effuses at the rate of 79mLs. U
Contact [7]

Answer : The rate of effusion of sulfur dioxide gas is 52 mL/s.

Solution :

According to the Graham's law, the rate of effusion of gas is inversely proportional to the square root of the molar mass of gas.

R\propto \sqrt{\frac{1}{M}}

or,

(\frac{R_1}{R_2})=\sqrt{\frac{M_2}{M_1}}       ..........(1)

where,

R_1 = rate of effusion of nitrogen gas = 79mL/s

R_2 = rate of effusion of sulfur dioxide gas = ?

M_1 = molar mass of nitrogen gas  = 28 g/mole

M_2 = molar mass of sulfur dioxide gas = 64 g/mole

Now put all the given values in the above formula 1, we get:

(\frac{79mL/s}{R_2})=\sqrt{\frac{64g/mole}{28g/mole}}

R_2=52mL/s

Therefore, the rate of effusion of sulfur dioxide gas is 52 mL/s.

4 0
3 years ago
The Earth's asthenosphere is a structural layer made up on what?
ehidna [41]
Gas is the answer ok
5 0
3 years ago
Read 2 more answers
Other questions:
  • Do substrates bind the active site permanelty or temporally
    5·1 answer
  • Which type of environmental pollution would not be the direct result of the human use of fossil fuels? A) The expansion of landf
    8·1 answer
  • D is none of the above
    11·2 answers
  • An organic compound was synthesized and found to contain only c, h, n, o, and cl. it was observed that when a 0.150 g sample of
    6·1 answer
  • Copper is used for electrical wirin g and cooking pans however iron is much more common on earth than copper why might copper be
    6·1 answer
  • A concentrated aqueous solution of Pb(NO3)2 is slowly added to 1.0 L of a mixed aqueous solution containing 0.010 M Na2CrO4 and
    10·1 answer
  • PLEASE Help I will give u brainliest for if u get right.
    6·2 answers
  • What is the molarity of 5.39 grams of CaCl2 dissolved in 609 mL of water? (molar mass = 110.98 g/mol)
    5·1 answer
  • Which statement best describes a difference between electromagnetic waves
    8·2 answers
  • Which element has the least density at STP?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!