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
Effectus [21]
3 years ago
11

The Law of Conservation of Energy is one of the most important principles in all of science. What does conservation mean in this

context?
a. Only small changes in the total energy of a system are possible
b. Planned management
c. Protection from running out
d. Careful usage
e. An increase or decrease is impossible
Chemistry
2 answers:
iogann1982 [59]3 years ago
8 0
I believe it is E because energy only transforms into other forms of energy.
Inessa [10]3 years ago
6 0
I think it’s protection from running out?
You might be interested in
What category is most of the elements part of
rjkz [21]

Answer:

transition metals

Explanation:

they're the elements in yellow in the picture

6 0
2 years ago
I’LL MAKE YOU BRAINLIEST+ FREE POINTS
Pavel [41]

Answer:

The solution's new volume is 1.68 L

Explanation:

Dilution is the procedure to prepare a less concentrated solution from a more concentrated one, and simply consists of adding more solvent. So, in a dilution the amount of solute does not vary, but the volume of the solvent varies.

In summary, a dilution is a lower concentration solution than the original.

The way to do the calculations in a dilution is through the expression:

Ci*Vi=Cf*Vf

where C and V are concentration and volume, respectively; and the i and f subscripts indicate initial and final respectively.

In this case, being:

  • Ci= 7 M
  • Vi= 0.60 L
  • Cf= 2.5 M
  • Vf=?

Replacing:

7 M*0.60 L= 2.5 M* Vf

Solving:

Vf=\frac{7 M*0.60 L}{2.5 M}

Vf= 1.68 L

<u><em>The solution's new volume is 1.68 L</em></u>

4 0
3 years ago
A company wants to develop audio speakers using an inexpensive type of plastic that has a very high quality of sound output. Whi
olga nikolaevna [1]

Answer:

a

Explanation:

Just took the test

6 0
3 years ago
An ionic compound is composed of the following elements:
Amiraneli [1.4K]

Answer: N3 H12 P O3

Explanation:

From the question :

N = 31.57% H = 9.10% P = 23.27%

O= 36.06%

Divide each of the element by their respective relative atomic masses.

N = 31.57 / 14 = 2.26

H = 9.10/ 1 = 9.10

P = 23.27 / 31= 0.750

O =36.06 / 16 = 2.25

Divide each answer by the lowest of them all, we then have:

N = 2.26/ 0.750 = Approx = 3

H = 9.10 / 0.750 = Approx = 12

P = 0.750/ 0.750= 1

O = 2.25 / 0.750 = Approx = 3

The empiral formula is

N3 H12 P O3

6 0
3 years ago
Read 2 more answers
An artificial satellite in which people can have live and work for long periods is called a
Ratling [72]
Is this astronomy? If it is, Space Station
 
8 0
2 years ago
Other questions:
  • Atom neutral subatomic particle found in the nucleus of the atom 2. elements the smallest whole unit of matter 3. radioactive el
    6·1 answer
  • What is the nuclear charge of a berrylium atom?
    6·1 answer
  • Anna stated that ionic compounds have high melting points and low boiling points. She said that this demonstrates that ionic com
    11·2 answers
  • For the reaction shown, find the limiting reactant for each of the following initial amounts of reactants. 4Al(s)+3O2(g)→2Al2O3(
    12·1 answer
  • Two forces are described below: Force 1: The force with which Earth pulls a person to its center Force 2: The pulling force appl
    8·2 answers
  • 2 Truths and 1 Lie: Universe Edition
    5·1 answer
  • Lab report for physical and chemical changes??!
    13·1 answer
  • What are the amount of moles in 12.15 grams of Magnesium?
    12·1 answer
  • 1.
    13·1 answer
  • Determine the velocity of a 55-kg skier whose kinetic energy is 8900 J
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!