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
k0ka [10]
3 years ago
12

*Help Please!!*

Chemistry
2 answers:
dexar [7]3 years ago
7 0
It is spontaneous at 298 k.
NikAS [45]3 years ago
5 0
The correct answer is c
You might be interested in
For question #12, use the following picture:<br><br> 12. What element is this? How do you know?
labwork [276]

Answer: The element shown in the image is Helium (He).

Explanation: We are given a image of an atom having protons, neutrons and electrons.

Number of protons as shown in image = 2

Number of neutrons as shown in image = 2

Number of electron as shown in image = 2

Atomic number = Number of protons = Number of electrons

Atomic number of the element = 2

Atomic Mass = Number of protons + Number of neutrons

Atomic mass = 2 + 2 = 4

The element having Atomic number = 2 and mass number = 4 is Helium.

Element = ^4_2\textrm{He}

8 0
3 years ago
Read 2 more answers
If some of the gas bubbles from the reaction had escaped out the bottom of the tube, how would this have affected your value for
Andrej [43]

The composition would be more "diluted" in a sense.

7 0
3 years ago
State and Explain the trend in the atomic radius down a group
balu736 [363]

Explanation:

<h2>The number of energy levels (n) increases, so there is a greater distance between the nucleus and the outermost orbital.</h2>
7 0
1 year ago
Explain the different between a molecule and a compound.
nevsk [136]

Answer:

-A molecule is the smallesr part is compound whereas a compound is the combination of two or more atoms in a fixed proportion by wiehgt.

- A glass of water is an example of compound but a small portion of water can be called molecule.

5 0
3 years ago
A. Explain, in terms of particles, why NaCl(s) does not conduct electricity.
yawa3891 [41]

Answer:

Ionic bonds hold charged particles in solid NaCl together, such that they are unable to move or conduct electricity.

Explanation:

Consider an electric current that flows through a conductor: charge moves in a uniform direction from one end of the conductor towards the other.

Thus, there are two conditions for a substance to conduct electricity:

  • The substance shall contain charged particles, and
  • These charged particles shall be free to move across the substance.

A conductor of electricity shall meet both requirements.

Now, consider the structure of solid NaCl \rm NaCl\;(s). NaCl is an ionic compound. It contains an ocean of oppositely charged ions:

  • Positive \rm Na^{+} ions, and
  • Negative \rm Cl^{-} ions.

Ions carry charge. Thus, solid NaCl contains charged particles and satisfies the first condition.

Inside solid NaCl \rm NaCl\;(s), electrostatic attractions ("ionic bonds") between the oppositely charged ions hold these ions in rigid ionic lattices. These ions are unable to move relative to each other. As a result, they cannot flow through the solid to conduct electricity. Under solid state, NaCl is unable to satisfy the second condition.

As a side note, melting NaCl into a liquid breaks the ionic bonds and free the ions from the lattice. Liquid NaCl is a conductor of electricity.

8 0
2 years ago
Other questions:
  • Which of the following substances would you predict to have the highest ΔHvap?
    11·1 answer
  • If you have 0.56 moles of an ideal gas at 87c and a pressure of 569 torr, what volume will the gas take up
    9·1 answer
  • Please HELP will give Brainliest!!!!!
    13·1 answer
  • If a chemical reaction such as the formation of iron oxide contains 4 atoms of iron (fe) in the product how many atoms of iron (
    14·2 answers
  • An example of an organic sedimentary rock used as fuel would be?
    7·1 answer
  • How many mmHg are in 1.6320 atm
    15·2 answers
  • What is an elementary reaction? 3.5. Given the reaction 2NO, + 1/202 = N,Os, what is the relationship between the rates of forma
    9·1 answer
  • The correlation between the amount of carbon dioxide and the plants growing is, as the plants are growing the carbon dioxide lev
    12·1 answer
  • What is arcade in south Center
    5·1 answer
  • Calculate the number of moles in 15.5g of CaSO4.5H2O
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!