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
defon
3 years ago
14

1. A cube of iron at 20.°C is placed in contact with a cube of copper at 60.°C. Which statement describes the initial flow of he

at between the cubes?
Chemistry
2 answers:
4vir4ik [10]3 years ago
4 0

Answer:


D) Heat flows from the copper cube to the iron cube.  


Step-by-step explanation:


The reason comes from the second law of thermodynamics:


Heat energy will flow spontaneously from an area of high temperature to one of low temperature.


When you bring two objects of different temperature into contact, heat energy always moves from the hotter to the cooler object.


The copper cube is hotter than the iron, so heat flows from the copper cube to the iron cube.


here hope this helps


enot [183]3 years ago
3 0

Please mark brainiest!!!

D) Heat flows from the copper cube to the iron cube.  

The reason comes from the second law of thermodynamics:


Heat energy will flow spontaneously from an area of high temperature to one of low temperature.


When you bring two objects of different temperature into contact, heat energy always moves from the hotter to the cooler object.


The copper cube is hotter than the iron, so heat flows from the copper cube to the iron cube.

Hope this helps!!

You might be interested in
In the reaction, 3Cu + 2Al3+ → 3Cu2+ + 2Al, which substance is being oxidized?
Wittaler [7]
In this reaction, Copper is the element being oxidized because it is losing electrons. It starts with a neutral charge (0) and ends up with a 6+ charge. Because its charge is increasing, it is being oxidized (losing electrons).

4 0
3 years ago
What is the identity of the atom shown?
jonny [76]
Niterogen if I’m wrong please correct me
3 0
3 years ago
Read 2 more answers
An aluminum block has a density of 2.70 g/mL. If the mass of the block is 24.60 g, find the volume of the substance.
harina [27]

Volume of a substance can be determined by dividing mass of the substance by its density.

That can be mathematical shown as:

Density=Mass/Volume

So, Volume=Mass/Density

Here mass of the substance given as 24.60 g

Whereas density of the substance is 2.70 g/mL

So,

Volume=Mass/Density

=24.6/2.7

=9.1 mL

So volume of the substance is 9.1 mL.

8 0
3 years ago
The accepted value for the molar volume of a gas is 22.4 L. Sarah's experimental data indicated that a mole of a gas had a volum
Amanda [17]

Answer:

Percent error = 12.5%

Explanation:

In a measurement you can find percent error following the formula:

Percent error = |Measured value - Accepted Value| / Acepted value * 100

Based on the data of the problem, accepted value is 22.4L and the measured Value (Value of Sara) was 19.6L.

Replacing:

Percent error = |Measured value - Accepted Value| / Acepted value * 100

Percent error = |19.6L - 22.4L| / 22.4L * 100

Percent error = |-2.8L| / 22.4L * 100

Percent error = 2.8L / 22.4L * 100

Percent error = 12.5%

3 0
3 years ago
The molar solubility of silver bromide, AgBr in pure water is 0.0007350 mol/L. What is the
gayaneshka [121]

Answer:

0.000000540

Explanation:

Step 1: Make an ICE chart for the solution of AgBr

"S" represents the molar solubility of AgBr

        AgBr(s) ⇄ Ag⁺(aq) + Br⁻(aq)

I                           0             0

C                          +S          +S

E                           S             S

Step 2: Write the expression for the solubility product constant (Ksp)

Ksp = [Ag⁺] [Br⁻] = S × S

Ksp = S² = (0.0007350)² = 0.000000540

7 0
3 years ago
Other questions:
  • A chemist is using a solution of HNO3 that has a pH of 3.75. What is [OH− ] for the solution?
    9·2 answers
  • Atoms join together to form compounds by gaining losing or sharing
    15·2 answers
  • (Multiple choice) Which actions are part of the dissolution process of an ionic solute in water?
    5·2 answers
  • Give the ΔH value for the decomposition of silver chloride as shown in the reaction 2AgCl(s)+127 kJ→2Ag(s)+Cl2(g).
    14·1 answer
  • The chemical symbol for sodium is<br> A. N.<br> B. S.<br> C. Na.<br> D. Sn.
    5·2 answers
  • What pressure will be exerted by 0.650 mol of a gas at 30.0C if it is contained in a 0.700 L vessel?
    13·1 answer
  • How many liters would you need to make a 0.8 M solution with 20 grams of lithium chloride?
    15·1 answer
  • Condensation is a phase change that
    8·1 answer
  • Help please. a container has a mixture of iron fillings and sand.​
    7·1 answer
  • 147,320 g has significant figures
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!