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
lapo4ka [179]
3 years ago
7

TIMED

Chemistry
2 answers:
zhannawk [14.2K]3 years ago
6 0
Density = mass/volume
Density = 81g/0.9cm³
Density = 90g/cm³
: )
Arlecino [84]3 years ago
4 0

Answer : The density of the sample in grams per cubic centimeter is, 90g/cm^3

Solution : Given,

Mass of unknown sample = 81 g

Volume of unknown sample = 0.9cm^3

Formula used :

\text{Density of unknown sample}=\frac{\text{Mass of unknown sample}}{\text{Volume of unknown sample}}

Now put all the given values in this formula, we get the density of unknown sample.

\text{Density of unknown sample}=\frac{81g}{0.9cm^3}=90g/cm^3

Therefore, the density of the sample in grams per cubic centimeter is, 90g/cm^3

You might be interested in
2.5 gm of a sample of Nahco3 when strongly.
mr_godi [17]

Answer:

Sry but i hope u will get the right answer and have a great christmas only 3 more days!

Explanation:

3 0
3 years ago
what is the oxidation state of each element in coh2? c o h what is the oxidation state of each element in febr3? fe br
fgiga [73]

The oxidation state of the elements  in the compounds are:

CoH₂:

  • Co = +2
  • H = -1

FeBr₃:

  • Fe = +3
  • Br = -1

<h3>What is the oxidation states of the elements in the given compounds?</h3>

The oxidation states of the elements in each of the given compounds is determined as follows:

Cobalt dihydride, CoH₂

Co = +2

H = -1

Iron (iii) bromide, FeBr₃

Fe = +3

Br = -1

In conclusion, the oxidation state of the elements are charges they have in the compound.

Learn more about oxidation state at: brainly.com/question/27239694

#SPJ1

8 0
2 years ago
Building Vocabulary
Juliette [100K]

Answer:

Explanation:

Building Vocabulary

Match each term with its definition by writing the letter of the correct definition on

the line beside the term in the left column.

5. nucleus   b

6. proton     f

7. neutron   h

8. electron  d

9. atomic number    g

10. isotopes              c

11. mass number      a

12. energy level       e

a. the sum of protons and neutrons in the nucleus of an

atom

b. the very small center core of an atom

c. atoms of the same element that differ in the number

of neutrons, but have the same number of protons

d. the particle of an atom that moves rapidly in the

space outside the nucleus

e. a specific amount of energy related to the movement

of electrons in atoms

f. the particle of an atom with a positive charge

g. the number of protons in the nucleus of every atom

of an element

h. the particle of an atom that is neutral

-. mass number  a.

12. energy level    e

5 0
3 years ago
HElP PLS!! 20 points Which statement best describes a characteristic unique to renewable resources?
Fofino [41]

Answer:

renewable resources are abundant???

5 0
3 years ago
Read 2 more answers
What is the measurement for momentum?
sertanlavr [38]
The unit of momentum is the product of the units of mass and velocity.
8 0
3 years ago
Other questions:
  • Uranium-235 and uranium-238 are considered isotopes of one another
    11·1 answer
  • A new substance is usually formed when two or more substances combine and form new protons. chemical bonds. physical shapes. ele
    9·1 answer
  • 20points
    10·2 answers
  • The frequency of the middle G note on a piano is 392.00 Hz. 392.00 Hz. What is the wavelength of this note in centimeters? The s
    15·1 answer
  • If DNA were straight it would be
    13·2 answers
  • A transition metal in the fourth period from the following list : Cu, O , Pr, Ag
    15·1 answer
  • How does electronic configuration of atoms change in the period with increase in the atomic number?​
    9·1 answer
  • If the pressure of 200 cm cube of a gas is half at constant temperature.what will be the new volume​
    5·1 answer
  • Which choice describes the function of the pancreas gland?
    8·1 answer
  • Tobias notices that a particular kind of flower comes in many slightly different shades of pink. In other places, the same flowe
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!