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
Alex787 [66]
3 years ago
7

A beach ball has a mass of 5 g and a volume of 20 cm3. What is the object's density?

Chemistry
1 answer:
ivann1987 [24]3 years ago
3 0
Mass = 5 g

volume = 20 cm³

density = mass / volume

therefore:

D = m / V

D = 5 / 20

D = 0.25 g/cm³
You might be interested in
When iocnic solids dissolve in water, the break down into the ____ ions (cations) and ___ ions (anions) that they contain?
ddd [48]
What are the answers

8 0
3 years ago
How carbon dioxide prepared in lab?
Nana76 [90]

Explanation:

In laboratory, carbon dioxide is not obtained from the air, carbon dioxide is prepared from carbonates by adding acids to the carbonates. In this experiment carbon dioxide is prepared by the reaction of marble with hydrochloric acid.

7 0
3 years ago
Calculate the molecular formula of a compound with the empirical formula C5H11 and a molar mass of 142.32 grams/mole
MA_775_DIABLO [31]
Relative formula mass C₅H₁₁ = 71

Now divide the molar mass by the RFM = 142.32 / 71 = 2

Now C₍₅ₓ₂₎H₍₁₁ₓ₂) = C₁₀H₂₂

Hope that helps
6 0
3 years ago
Christy is a forensic scientist. She is given
Nitella [24]

Answer:

The white powder is not sugar, so Christy's hypothesis is incorrect . Christy's next step should be to identify substances that have the measured molecular mass.

Explanation:

6 0
3 years ago
1) If the pressure on 2.6 liters of a gas at 860 Torr is increased to 1000 Torr,
LenKa [72]

2.24 liters is the volume of the gas if pressure is increased to 1000 Torr.

Explanation:

Data given:

Initial volume of the gas V1 = 2.6 liters

Initial pressure of the gas P1 = 860 Torr 1.13 atm

final pressure on the gas P2 = 1000 Torr 1.315 atm

final volume of the gas after pressure change V2 =?

From the data given above, the law used is :

Boyles Law equation:

P1V1 = P2V2

V2 = P1V1/P2

   = 1.13 X 2.6/ 1.31

  = 2.24 Liters

If the pressure is increased to 1000 Torr or 1.315 atm the volume changes to 2.24 liters. Initially the volume was 2.6 litres and the pressure was 860 torr.

6 0
3 years ago
Other questions:
  • An aqueous solution of potassium sulfate (K2SO4) has a freezing point of -2.24
    11·1 answer
  • Fe(OH)3 → Fe2O3 + H2O<br><br>y'all help tbh please ​
    9·1 answer
  • A clear liquid in an open container is allowed to evaporate. after three days a solid residue is left. was the original liquid a
    7·1 answer
  • 3. How do you observe stuff?
    15·2 answers
  • What is generally true about the compressibility of solids?
    7·2 answers
  • PLEASE HELP FAST!! I need someone to see if my answers are correct!
    5·1 answer
  • PH Range of 7.1-14<br> Is that acid or a base?
    8·1 answer
  • How much thermal energy must be added to a 87.5 g sample of ice at -25oC completely melt the entire sample? As part of your work
    9·1 answer
  • . Who was the scientist responsible for the laws of motion?
    5·2 answers
  • I run the reaction below using 55.0 g sodium chloride and plenty of fluorine, and it produces 8.8 grams of chlorine gas. What is
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!