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
djyliett [7]
2 years ago
10

How does energy change when it moves?? PLEASE ANSWER ASAP

Chemistry
1 answer:
Usimov [2.4K]2 years ago
4 0

Answer:

When objects collide, energy can be transferred from one object to another, thereby changing their motion. Energy can also be transferred from place to place by electric currents, which can then be used locally to produce motion, sound, heat, or light.

You might be interested in
Please help , I don't know about big bang I'm sorry
Tresset [83]

1. When our Galaxy was forming why was the center dense?

Answer: <u>Stars are believed to originate as from gas clouds in space. Gravitational forces cause this gas to contract forming a dense center of gravitational force.Eventually this extreme pressure at the center of the star causes nuclear fusion reactions to occur.</u>

2. Why did hydrogen atoms collide in the dense center of the Galaxy?

Answer: <u>Compression would heat the gas to temperatures above 1,000 kelvins. Some hydrogen atoms would pair up in the dense, hot gas, creating trace amounts of molecular hydrogen. The hydrogen molecules would then start to cool the densest parts of the gas by emitting infrared radiation after they collide with hydrogen atoms.</u>

3 0
2 years ago
What is an unknown element´s that has 35 protons
Zolol [24]

Solved: An Unknown Element Contains 35 Protons, 36 Electro... | ...

5 0
3 years ago
Given the three equations below, what is the heat of reaction for the production of glucose, C6H12O6, as described by this equat
UkoKoshka [18]

Answer:

- 1273.02 kJ.

Explanation:

This problem can be solved using Hess's Law.

Hess's Law states that <em>regardless of the multiple stages or steps of a reaction, the total enthalpy change for the reaction is the sum of all changes. This law is a manifestation that enthalpy is a state function.</em>

  • We should modify the given 3 equations to obtain the proposed reaction:

<em>6C(s) + 6H₂(g) + 3O₂(g) → C₆H₁₂O₆(s),</em>

<em></em>

  • We should multiply the first equation by (6) and also multiply its ΔH by (6):

6C(s) + 6O₂(g) → 6CO₂(g), ∆H₁ = (6)(–393.51 kJ) = - 2361.06 kJ,

  • Also, we should multiply the second equation and its ΔH by (6):

6H₂(g) + 3O₂(g) → 6H₂O(l), ∆H₂ = (6)(–285.83 kJ) = - 1714.98 kJ.

  • Finally, we should reverse the first equation and multiply its ΔH by (- 1):

6CO₂(g) + H₂O(l) → C₆H₁₂O₆(s) + 6O₂(g), ∆H₃ = (-1)(–2803.02 kJ) = 2803.02 kJ.

  • By summing the three equations, we cam get the proposed reaction:

<em>6C(s) + 6H₂(g) + 3O₂(g) → C₆H₁₂O₆(s),</em>

<em></em>

  • And to get the heat of reaction for the production of glucose, we can sum the values of the three ∆H:

<em>∆Hrxn = ∆H₁ + ∆H₂ + ∆H₃ =</em> (- 2361.06 kJ) + (- 1714.98 kJ) + (2803.02 kJ) = <em>- 1273.02 kJ.</em>

6 0
2 years ago
Read 2 more answers
A student determines the density of an element to be 2.73 g/cm 3 . If the accepted value is 2.70 grams per cm 3 , what is the st
Brums [2.3K]

Answer:

Explanation:

percentage error = error  x 100 / correct value

= (2.73 - 2.70) x100 / 2.70

= 1.11 %

The element is Aluminium whose density is 2.702 grams / cc

Boiling point of Aluminium = 2519⁰C .

8 0
3 years ago
A _____ speeds up a chemical reaction, but is not directly involved in the reaction.
igomit [66]
I think your answer is nunclear.
4 0
3 years ago
Read 2 more answers
Other questions:
  • H2SO4 is added to a large beaker of water. How is the solution different from the original water?
    12·2 answers
  • At 189k a sample of gas has a volume of 32.0cm. what does the gas occupy at 242k
    15·1 answer
  • A student is investigating the transfer of energy between potential and kinetic. The student observes a roller coaster at four l
    7·2 answers
  • Which half-reaction correctly shows the oxidation of iron
    6·1 answer
  • What do you know about a substance it you know its temperature? A.How heavy the substance is B.How large or small the particles
    8·2 answers
  • Please help go over my work
    15·2 answers
  • Which equation represents the total ionic equation for the reaction of HNO3 and NaOH?
    14·1 answer
  • Which of the following substance is NOT matter? *
    9·1 answer
  • How do plants release carbon into the atmosphere
    11·2 answers
  • Which one of these molecules can be a reactant in a friedel-crafts reaction? a) aniline b) benzenesulfonic acid c) chloroethene
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!