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
Rudiy27
3 years ago
15

Which statement best describes mechanical energy?

Chemistry
1 answer:
Allisa [31]3 years ago
5 0

Answer:

the answer is B.

Explanation:

your welcome

You might be interested in
Why is it more accurate to say that the concentration of a solution of acetic acid is 0.01 f rather than 0.01 m?
olasank [31]

A 1 F solution stands 1 formula unit per litre and 0.01 F describes the concentration of solution with no deliberation for the real form of existence of species.

Molarity is defined as the ratio of moles of solute to the volume of solution in litres and it is used to describe formality. For accuracy, it is essential to expressed molarity of each species. In case of acetic acid, the molarity of acetic acid molecules is less than 0.01 M due to dissociation.

Thus, it is more precise to say that the concentration of a solution of acetic acid is 0.01 F instead of 0.01 M.

4 0
3 years ago
Read 2 more answers
Which statement is not true?
ludmilkaskok [199]
B) some planets revolve backwards

3 0
3 years ago
Q15. Natural gas burns in air to form carbon dioxide and water to releasing heat. CHA(g) O2 (g) CO2 g) H20 (g) AH 802.3 kJ What
mestny [16]

Answer:

a) 0.115 g

Explanation:

The balanced reaction is:

CH₄(g) + 2O₂(g) → CO₂(g) + 2H₂O(g)

To heat 55g of water, the energy in form of heat necessary can be calculated by:

Q = mcΔT

where Q is the heat, m is the mass, c is the specific heat (for water, c = 4.18 J/gºC), and ΔT is the variation of the temperature, which is 25ºC, so:

Q = 55x4.18x25

Q = 5747.5 J = 5.7475 kJ

So, for the reaction, 1 mol of CH₄ releases 802.3 kJ, so to release 5.7475 kJ will be necessary:

1 mol ---------------- 802.3 kJ

x ---------------- 5.7475 kJ

By a simple direct three rule:

802.3x = 5.7475

x = 7.164x10⁻³mol

The molar mass of CH₄ is : 12 (of C) + 4x1 (of H) = 16 g/mol

The mass is equal to the number of moles multiplied by molar mass, the:

m = 7.164x10⁻³x16

m = 0.115 g

6 0
3 years ago
How many electrons in an atom could have these sets of quantum numbers?
Alecsey [184]
Ml=−2,−1,0,+1,+2.
<span>Since each of these orbitals can hold a maximum of </span>two electrons<span>, one having spin-up and one having spin-down, a total of </span>10 electrons<span> can share the quantum numbers n = 4 and l = 2</span>
8 0
3 years ago
A gas that exerts a pressure of 537 torr in a container with a volume of 5.30 L will exert a pressure of 255 torr when transferr
ArbitrLikvidat [17]

Answer:- The gas needs to be transferred to a container with a volume of 11.2 L.

Solution:- From Boyle's law. "At constant temperature, Volume is inversely proportional to the pressure."

It means, the volume is decreased if the pressure is increased and vice versa.

Here, the Pressure is decreasing from 537 torr to 255 torr. So, the volume must increase and calculated by using the equation:

P_1V_1=P_2V_2

Where, P_1 is initial pressure and P_2 is final pressure. Similarly, V_1 is initial volume and V_2 is final volume.

Let's plug in the values in the equation:

(537 torr)(5.30 L) = (255 torr)(V_2)

V_2=(\frac{537 torr*5.30 L}{255 torr})

V_2 = 11.2 L

So, the new volume of the container needs to be 11.2 L.

4 0
3 years ago
Other questions:
  • Distinguish air mass and a front
    14·1 answer
  • How many atom of cd are in 3.00g of cadmium
    8·2 answers
  • Which equation demonstrates that nuclear fusion forms elements that are heavier than helium?
    12·2 answers
  • Atmos of given elements will have the same mass true or false .
    15·2 answers
  • Which ion is responsible for basic properties?
    12·1 answer
  • What is the charge of the hydride ion?​
    10·1 answer
  • The subatomic particles are.........
    14·1 answer
  • It is best to say that electric motors require _______ to work. a. a continuous current b. a galvonometer c. a generator d. ener
    13·1 answer
  • What type of graphic image is shown in Image 12
    8·1 answer
  • Choose one side of the debate below, and form a brief argument supporting that side.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!