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
alisha [4.7K]
2 years ago
9

Find the "density" of a copper sample whose mass is 134.4 grams and whose volume is 15.0mL

Chemistry
1 answer:
Sonja [21]2 years ago
3 0

Answer:

8.96 g/mL

Explanation:

density = mass / volume

density = 134.3g / 15.0 mL

density = 8.96 g/mL

You might be interested in
Give an example of one type of energy conversion (change to another form). Be sure to explain your example.
Daniel [21]
Potential to Kinetic Energy. 
When you a basketball in your hand that is potential energy. Then, when you bounce the ball that is kinetic energy. 
3 0
3 years ago
The energy of a photon is ________ proportional to its wavelength. The energy of a photon is ________ proportional to its freque
topjm [15]

Answer: Inversely  ,   Directly

Explanation:

The energy of a photon is inversely proportional to its wavelength and directly proportional to its frequency.

As can be seen from this equation;

E = hv  = h c / ∧

Where E = Energy of a photon

           v = Frequency

           h = Planck Constant

           c = speed of light

           ∧  = Wave length

4 0
3 years ago
Anyone plz help?? T^T
Wewaii [24]

Answer:

C. Mg3N2

Explanation:

--------------

4 0
3 years ago
Read 2 more answers
What one of these reactions are a combustion a. Burning wood b. Decomposition of water c. Production of plants with the suns ene
sineoko [7]

Combustion involves with heat. The answer is burning wood.

6 0
3 years ago
Read 2 more answers
A chemist has one solu6on that is 40% sulfuric acid and one that is 10% sulfuric acid. How much of each should she use to make 2
kipiarov [429]

Answer:

12 L of 40% sulfuric acid solution and 8 L of 10% sulfuric acid solution are needed to make 20 L of sulfuric acid solution.

Explanation:

For first solution of sulfuric acid :

C₁ = 40% , V₁ = ?

For second solution of sulfuric acid :

C₂ = 10% , V₂ = ?

For the resultant solution of sulfuric acid:

C₃ = 28% , V₃ = 20L

Also,

<u>V₁ + V₂ = V₃ = 20L</u> ......................................(1)

Using

<u>C₁V₁ + C₂V₂ = C₃V₃</u>

<u>40×V₁ + 10×V₂ = 28×20</u>

So,

40V₁ + 10V₂ = 560........................................(2)

Solving 1 and 2 as:

V₂ = 20 - V₁

Applying in 2

40V₁ + 10(20 - V₁)  = 560

40V₁ + 200 - 10V₁ = 560

30V₁ = 360

<u>V₁ = 12 L</u>

So,

<u>V₂ = 20 - V₁ = 8L</u>

<u><em>12 L of 40% sulfuric acid solution and 8 L of 10% sulfuric acid solution are needed to make 20 L of sulfuric acid solution.</em></u>

4 0
3 years ago
Other questions:
  • How many diatomic molecules are there? List all of them
    5·1 answer
  • Describe, in your own words, why granulated sugar will dissolve faster in a cup of coffee than sugar cubes will. Be specific in
    7·1 answer
  • How many moles are in 5.0 x 10^25 atoms of iron?
    11·1 answer
  • Echoic memory and iconic memory are a part of the __________ memory.
    13·2 answers
  • 7. (04wP2-5)Elements with atomic number 21 to 30 are d-block elements.
    9·1 answer
  • Which is an example of a chemical reaction
    6·1 answer
  • A) Draw a conclusion about the relationship between enzyme activity and reaction temperature.
    8·1 answer
  • What atom has 2 electrons, 6 protons and 7 neutrons
    14·1 answer
  • How many moles of N2 are found in 3.5 L?​
    13·1 answer
  • Do you agree or disagree with the following statement:
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!