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
slega [8]
3 years ago
5

How does it? Please help

Chemistry
1 answer:
pashok25 [27]3 years ago
5 0
How does it what. i don’t know if there’s a photo but can’t see it
You might be interested in
A chemist wants to calculate the amount of heat that is absorbed by a sample of copper as it is melted. Which constant should sh
34kurt

The constant used for the absorption of heat by the sample in melting is +\Delta H_{fus}.  Thus, option A is correct.

The chemical reaction has been defined as the energy in which the energy has been released or absorbed for the breaking of bonds in the reactants and the formation of product.

<h3>Constant for energy absorbed</h3>

The energy has been absorbed in the melting of the copper sample. Thus, the sample has been converted from the solid to the liquid state.

The change in energy with the conversion in solid and liquid state has been termed as heat of fusion.

The energy has been absorbed by the system, thus it has been marked with the positive sign.

Therefore, +\Delta H_{fus} has been the constant used for the absorption of heat by the sample in melting. Thus, option A is correct.

Learn more about melting sample, here:

brainly.com/question/8828503

8 0
2 years ago
Arguments in favor of renewable energy
fenix001 [56]

I actually did the math for this a while ago. In order to install solar panels to every house in America it would cost a one time payment of about 900 billion dollars. We spend 700 billion on fossil fuels each year so in two years it would already pay itself off them we'd actually profit from it. Even if you don't believe in global warming you can't argue with that.

5 0
3 years ago
The area that includes everything between the cell membrane and the nucleus of a cell is called the ___________.
m_a_m_a [10]

The answer is C. Cytoplasm

happy to help!!

7 0
2 years ago
Read 2 more answers
What is the density of a 12-gram sample of zinc with volume of 8.4 cm3? <br><br> pls hurry pls
Sindrei [870]

AnswerIm telling your teacher "Ms.Byrd" your in 8th grade and go to berry middle?

Explanation:

8 0
2 years ago
Which is an example of poor safety practices when working outdoors
kati45 [8]

Answer:

C

Explanation:

u can't touch a chemical with bare skin

7 0
3 years ago
Read 2 more answers
Other questions:
  • The density of a 15.00% by mass aqueous solution of acetic acid, CH3COOH, is 1.0187g/mL. What is (a) the molarity? (b) the molal
    15·1 answer
  • A sample of carbon-12 has a mass of 6.00 g. How many atoms of carbon-12 are in the sample?
    7·2 answers
  • What should you do with a rag that has been used to wipe up spilled gasoline? a)Place it in the bilge. b)Hang it over the gunwal
    8·1 answer
  • Radioactive gold-198 is used in the diagnosis of liver problems. the half-life of this isotope is 2.7 days. if you begin with a
    10·1 answer
  • You are experimenting to find out if fertilizer makes a plant grow taller. What would be an appropriate control group for this e
    9·1 answer
  • the compound nacI is an example of a /an.. (A)covalent bond (B)Ionic bond (C) Metallic bond (D) none of the above
    8·1 answer
  • Question 12 (1 point)
    12·1 answer
  • What was observed when positively charged particles were radiated onto a gold atom during Rutherford's experiment because of thi
    13·1 answer
  • 152 2s22p6 3s2 3pó 452 3d5
    11·1 answer
  • Rebecca is playing a video game that involves planting and cutting down trees. She moves up an energy level for each tree she pl
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!