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
NISA [10]
3 years ago
11

Select the correct answer.

Chemistry
1 answer:
adelina 88 [10]3 years ago
3 0

Answer:

OB. Energy transfer would occur between the copper bars and the surroundings.

Explanation:

We define an isolated system as a system in which there is neither exchange of material nor energy while an open system is one in which materials and energy can be exchanged with the environment.

Given an open system consisting of two copper bars at different temperatures, energy will not only be exchanged between the copper bars but also between the copper bars and the environment.

You might be interested in
Be sure to answer all parts. Consider the following balanced redox reaction (do not include state of matter in your answers): 2C
timurjin [86]

Answer:

The specie which is oxidized is:- CrO_2^-

The specie which is reduced is:- ClO^-

Explanation:

Oxidation reaction is defined as the chemical reaction in which an atom looses its electrons. The oxidation number of the atom gets increased during this reaction.

X\rightarrow X^{n+}+ne^-

Reduction reaction is defined as the chemical reaction in which an atom gains electrons. The oxidation number of the atom gets reduced during this reaction.

X^{n+}+ne^-\rightarrow X

For the given chemical reaction:

2CrO_2^- + 6ClO^- + 2H_2O\rightarrow 2CrO_4^{2-} + 3Cl_2 + 4OH^-

The half cell reactions for the above reaction follows:

Oxidation half reaction:  CrO_2^- + 2H_2O + 4OH^-\rightarrow CrO_4^{2-} + 4H_2O + 3e^-

Reduction half reaction:  2ClO^- + 4H_2O + 2e^-\rightarrow Cl_2 + 2H_2O + 4OH^-

Thus, the specie which is oxidized is:- CrO_2^-

The specie which is reduced is:- ClO^-

8 0
4 years ago
Which of the following compounds is the name of a 5 carbon Allene?
LiRa [457]
"Pent" is five, "ene" means double bonded carbon
5 0
3 years ago
Science thing............<br><br> Select the correct answer ♡
Alika [10]

Answer:

d

Explanation:

sugar molecules are being broken down

3 0
3 years ago
Can someone explain the steps for balancing chemical equations in depth?
m_a_m_a [10]

Answer:

Steps explained below

Explanation:

To explain balancing of chemical equations, I will make use of an example equation where Hydrogen and oxygen react to form water.

H2 + O2 = H2O

Now, the equation I've listed above is an unbalanced chemical equation. It can be balanced by the following steps;

Step 1: Identify the elements on both the left Hand side and the right hand side.

In this case;

on the left hand side, we have H and O.

On the right hand side, we have H and I also.

Step 2: Identify the number of atoms of each element on both the left and right hand sides.

On the left, H has 2 atoms and O has 2 atoms.

On the right, H has 2 atoms and O has 1 atom.

Step 3: For the equation to be balanced, the number of atoms of each element on the right and left hand side must be the same.

Thus,

O on the left hand side has 2 atoms but on the right hand side it has 1 atom. Thus, we will multiply O on the right by 2 to balance what we have on the left.

So, we now have;

H2 + O2 = 2H2O

Step 4: Check equation: We now have;

H2 + O2 = 2H2O

Our left hand side remains 2 atoms of H and 2 atoms of O. But on the right, we now have;

2 atoms O and 4 atoms of H.

Which means atoms of H is not balanced with the left side.

Step 5: rebalance equation: To rebalance, we multiply H on the left by 2 to give us 2 × 2 = 4 atoms.

Thus, we now have;

2H2 + O2 = 2H2O

3 0
3 years ago
Read 2 more answers
What general term is used to describe the pure liquid (such as a pure water) obtained in such a process
yulyashka [42]
Pure water is called distilled water or deionized water.
8 0
3 years ago
Other questions:
  • Dangers in your home: knowing how to handle household products containing hazardous materials or chemicals can reduce the risk o
    12·2 answers
  • Which of the following is most likely to use coal<br> as fuel?<br> Stove<br> Airplane<br> Factory
    11·1 answer
  • From the following enthalpy of reaction data and data in Appendix C, calculate ΔH∘f for CaC2(s): CaC2(s)+2H2O(l)→Ca(OH)2(s)+C2H2
    13·1 answer
  • What is the percent CdSO4 by mass in a 1.00 m aqueous CdSO4 solution?
    5·1 answer
  • Which of the following models represents a historical or modern model of the atom? a. The plum-pudding model. Selected:b. The pl
    10·1 answer
  • Hey student made a model of a river in a sandbox a pile of sand represents soil and bits of rocks in the riverbed water pouring
    11·2 answers
  • Helppppppppp please please
    6·1 answer
  • Part B Identify the sets of quantum numbers that describe all the electrons in the ground state of a neutral beryllium atom, Be.
    6·1 answer
  • It is 12:00 and you just heard that local officials are tracking a violent storm heading westward, directly for your town and sc
    7·2 answers
  • What two things must occur in order for a light ray to refract when it strikes
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!