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
sesenic [268]
2 years ago
15

Which of the following choices contains the most thermal energy? a penny that is 20 degrees Celsius ( oC) an atom of aluminum th

at is 20 degrees Celsius ( oC) a 50 milliliter (ml) glass of water at 20 degrees Celsius ( oC) a 900 milliliter (ml) pitcher of orange juice at 20 degrees Celsius ( oC)
Chemistry
1 answer:
jek_recluse [69]2 years ago
6 0

Answer: a 900 milliliter (ml) pitcher of orange juice at 20 degrees Celsius ( oC)

Explanation:

Thermal energy is the energy possessed by an object by virtue of its temperature. The hotter the substance, the more its molecules vibrate, and therefore the higher its thermal energy.

Thermal energy refers to the sum of kinetic, potential, vibrational ,electronic and rotational energies of the object.

For bodies at same temperature, the body with more molecules will have more thermal energy due to more collisions.

You might be interested in
Calculate the wavelength for the transition from n = 4 to n = 2, and state the name given to the spectroscopic series to which t
finlep [7]

Answer:

The wavelength for the transition from n = 4 to n = 2 is<u> 486nm</u> and the name  name given to the spectroscopic series belongs to <u>The Balmer series.</u>

Explanation

lets calculate -

Rydberg equation-   \frac{1}{\pi } =R(\frac{1}{n_1^2} -\frac{1}{n_2^2})

where ,\pi is wavelength , R is Rydberg constant ( 1.097\times10^7), n_1 and n_2are the quantum numbers of the energy levels. (where n_1=2 , n_2=4)

Now putting the given values in the equation,

                \frac{1}{\pi }=1.097\times10^7\times(\frac{1}{2^2} -\frac{1}{4^2} )=2056875m^-^1

    Wavelength \pi =\frac{1}{2056875}

             =4.86\times10^-^7 = 486nm

<u>    Therefore , the wavelength is 486nm and it belongs to The Balmer series.</u>

8 0
3 years ago
What type of grass is poisioness
ikadub [295]

Answer: Tall fescue can be harmful to grazing cattle and horses because the grass can become tough and infected with endophytes, causing poor grazing. Switchgrass and tall fescue are less likely to be poisonous to dogs, cats or humans than to horses or cattle, but eating either of them might cause stomach upset.

Explanation:

5 0
3 years ago
Read 2 more answers
An electrically neutral atom bears what trait?
zhenek [66]

C) It contains the same number of electrons and protons.

4 0
3 years ago
Iron is extracted from iron oxide in the Blast Furnace: Fe 2 O 3 + 3 CO → 2 Fe + 3 CO 2
arsen [322]

a. mass of iron = 69.92 g

b. percent yield = 93%

<h3>Further eplanation </h3>

Percent yield is the compare of the amount of product obtained from a reaction with the amount you calculated

General formula:

Percent yield = (Actual yield / theoretical yield )x 100%

An actual yield is the amount of product actually produced by the reaction. A theoretical yield is the amount of product that you calculate from the reaction equation according to the product and reactant coefficients

a.

Reaction

Fe₂O₃+3CO⇒2Fe+3CO₂

MW Fe₂O₃ :  159.69 g/mol

mol Fe₂O₃

\tt \dfrac{100}{159,69}=0.626

mol Fe₂O₃ : mol Fe = 1 : 2

mol Fe :

\tt \dfrac{2}{1}\times 0.626=1.252

mass of Fe(Ar=55.845 g/mol) :

\tt 1.252\times 55.845=69.92~g

b.

actual yield = 65 g

theoretical yield = 69.92 g

percent yield :

\tt =\dfrac{65}{69.92}=0.93=93\%

8 0
2 years ago
Can you help me please?
mote1985 [20]

Answer:

A. the light subatomic.... is correct answer

3 0
3 years ago
Other questions:
  • H3c6h5o7(aq) + 3nahco3(aq) → 3co2(g) + 3h2o(l) + na3c6h5o7(aq) calculate the number of grams of baking soda (nahco3; molar mass
    10·1 answer
  • A solution is made by dissolving 14.0 g of potassium chloride to a final volume of 78.9 mL solution. what is the weight/weight %
    8·2 answers
  • Chemists use activity series to determine wether which type of reaction will occur?
    7·1 answer
  • penicillin. an important antibiotic (antibacterial agent), was discovered accidentally by the scottish bacteriologist alexander
    15·1 answer
  • Gasoline is a hydrogen and carbon compound. It is mixed with air in the carburetor of a car. What conditions within the carburet
    15·1 answer
  • In nematode worms, a gene that codes for an ATPase has two alternatives for exon 4 and three alternatives for exon 7. How many d
    14·1 answer
  • A piece of iron has a volume of 11.6 cm3 and a mass of 63.5g what is its density?
    6·1 answer
  • Which of the following would have the lowest entropy?
    10·2 answers
  • How can I write a poem about cells
    9·1 answer
  • Find the volume of hydrogen gas formed when 1.5g of aluminum reacts with aq NaOH at 27 degrees Celcius.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!