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
Katena32 [7]
3 years ago
10

Name the two molecules Nн нннн

Chemistry
1 answer:
arlik [135]3 years ago
4 0

Answer:

1: C5H12

2:C5H11

Explanation:

nakqkchlqosnx

You might be interested in
The form of carbon created by plants is
Mars2501 [29]
Carbon dioxide (CO2)
in the process of respiration, oxygen and glucose react to form carbon dioxide and water.
8 0
3 years ago
What is the atomic number of the Adam shown 18 protons 22 neutrons
DaniilM [7]
It's 18 (the same as the number of protons:)
4 0
3 years ago
How does the presence of a catalyst affect the enthalpy of a reaction? Group of answer choices 1. It depends on whether you are
Otrada [13]

Answer:

Option 3. The catalyst does not affect the enthalpy change (\Delta H_\text{rxn}) of a reaction.

Explanation:

As its name suggests, the enthalpy change of a reaction (\Delta H_\text{rxn}) is the difference between the enthalpy of the products and the reactants.

On the other hand, a catalyst speeds up a reaction because it provides an alternative reaction pathway from the reactants to the products.

In effect, a catalyst reduces the activation energy of the reaction in both directions. The reactants and products of the reaction won't change. As a result, the difference in their enthalpies won't change, either. That's the same as saying that the enthalpy change \Delta H_\text{rxn} of the reaction would stay the same.

Refer to an energy profile diagram. Enthalpy change of the reaction \Delta H_\text{rxn} measures the difference between the two horizontal sections. Indeed, the catalyst lowered the height of the peak. However, that did not change the height of each horizontal section or the difference between them. Hence, the enthalpy change of the reaction stayed the same.

6 0
3 years ago
How many moles are in 1.05 g of gold (Au)?
Wittaler [7]

Answer:

0.005 mol

Explanation:

Moles is denoted by given mass divided by the molecular mass ,  

Hence ,  

n = w / m

n = moles ,  

w = given mass ,  

m = molecular mass .

From the question ,

w = given mass of Gold = 1.05 g ,

m = molecular mass of Gold = 197 g/mol

<u>Hence , moles can be calculated as -</u>

n = w / m = 1.05 g / 197 g/mol = 0.005 mol

7 0
3 years ago
If you change the state of something, say, liquid to solid, is it a physical or chemical change?
Georgia [21]
I believe that it is a chemical change.
4 0
3 years ago
Read 2 more answers
Other questions:
  • While elements and compounds can both be classified as pure substances because they have distinct properties and composition, __
    10·2 answers
  • How does the Law of Conservation of Mass relate to changes in physical state? How does it relate to chemical changes?
    12·1 answer
  • For most substances,the distance between particles is furthest when the substance is?
    9·1 answer
  • What is a time machine? who discovered the time machine​
    13·1 answer
  • Calculate the mass percent of each component in the following solution.
    13·1 answer
  • No links right answers only!! 9recipitation like in the Arctic tundra.
    5·2 answers
  • I need help . Pleaseee
    8·1 answer
  • A helium laser emits light with a wavelength of 633nm. what is the frequency of light
    14·1 answer
  • How does the law of conservation of energy apply to the changes in potential and kinetic energy of a pencil as it falls to the f
    10·1 answer
  • Because of a scarcity of workers in the New World, persons were transported against their will to work on large farms without pa
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!