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
shutvik [7]
2 years ago
11

Use the following image to answer the following questions. A student was performing an experiment using two identical cups made

of styrofoam. The student had Cup A holding water at 90℃ and Cup B holding water at 20℃. The student then put an Aluminum Bar into each cup that was touching the water. As time passed, the student noticed that the temperature of the water in Cup A and Cup B began to change. Question:
A. Predict what will happen to the temperature of the water in Cup A and Cup B after 1 hour has passed.
B. Explain and give evidence for what type of heat transfer is occurring between the 2 cups.

Whoever answers my question gets brainliest

Chemistry
1 answer:
Anettt [7]2 years ago
3 0

Answer:

The water will eventually become the same temature (A)

You might be interested in
What is the pressure exerted by a 0.500 mol sample of nitrogen in a 10.0 L container at 20°C?
lidiya [134]
The answer would be D.120 kPa
6 0
3 years ago
Which of the following examples includes only chemical changes that occur in
Paul [167]
I don’t think you can get it for
6 0
3 years ago
What is the majority of 0.50 g of na dissolved in a 1.5 L solution
Oxana [17]

The correct answer is 0.014467 M.  

Molarity is defined as the number of moles present in a liter solution, that is, number of moles / liter solution.  

The molar mass of sodium (Na) is 23.0 g/mol

Thus, 1 mole of Na contains 23.0 g

Now, x moles of Na contains 0.50 g

Moles = 0.50 × 1 / 23.0

Moles = 0.50 / 23.0  

= 0.0217 moles of Na

Molarity = Number of moles / liters of solution

= 0.0217 / 1.5

= 0.014467 M


8 0
3 years ago
A coffee-cup calorimeter initially contains 125 g water at 24.28C. Potassium bromide (10.5 g), also at 24.28C, is added to the w
iren2701 [21]

Answer:

The solution is given below

Explanation:

Heat, q= mc∆T

q= 125g x 4.18 J/g∙°C x (21.18x- 24.28) °C

q=  -1619.75J

NEGATIVE SIGN INDICATES THAT HEAT IS ABSORBED.

Enthalpy Change, ∆H = 1619.75 7/ 10.5 g

                                     = 154.26 J/g

No. of moles of KBr = Mass of KBr/ Molecular Weight of KBr

                                =10.5g/119gmol-1

                                =0.088 mol

∆H= 1619.75 J/ 0.088 mol

      = 18.41 kJ/mol  

6 0
3 years ago
The following chemical equation is not balanced: I2 + Na2S2O3 NaI + Na2S4O6 When this chemical equation is correctly balanced, w
marshall27 [118]

Answer:

The answer is B

4 0
3 years ago
Other questions:
  • A barium atom attains a stable electron configuration when it bonds with?
    13·1 answer
  • tres pensamientos negativos sobre el C0Vid-19 que se vive en la actualidad y luego transformemos a pensamientos positivos.
    14·2 answers
  • If you have 120. mL of a 0.100 M TES buffer at pH 7.55 and you add 3.00 mL of 1.00 M HCl, what will be the new pH? (The pKa of T
    5·1 answer
  • Which substance gives heat and light after combustion?
    13·1 answer
  • When balancing a redox reaction, you are balancing
    8·2 answers
  • 2 3 4 5 6 7 8 9 10
    8·1 answer
  • Anyone know the parts of this cell? Please and thank you!
    15·1 answer
  • Tectonic activity causes potential energy to build up in the crust. An earthquake occurs when this potential energy is released
    11·2 answers
  • Nồng độ mol của 200ml dung dịch Nacl chứa 0,5 mol chất tan là :
    12·2 answers
  • Giving brainless to who gets it correct
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!