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
VARVARA [1.3K]
2 years ago
6

Which substance can not be decomposed by a chemical change?

Chemistry
2 answers:
oksian1 [2.3K]2 years ago
8 0
The substance that can not be decompoased by a chemical change is B. Carbon
FrozenT [24]2 years ago
3 0
Carbon because it an element in comparison to eater for example which is a mixture of hydrogen and oxygen.
You might be interested in
What is wrong with the following explanation of an experiment? When it was heated, the sample of carbon decomposed.
Drupady [299]
"Carbon" is an element. It is found in the fourth group of the periodic table, and it is a stable element. This means that it can not be decomposed via heating, because if an element were to break down, it would release its subatomic particles. The explanation was probably one used to describe the thermal decomposition of a compound into smaller compounds.
7 0
3 years ago
Define the dead or void time in HPLC? <br> Plzzz help I’m struggling
marysya [2.9K]

Answer:

2 Answers. The column is filled with the carrier (liquid or gas) before the sample is injected. Thus if there is no interaction between the sample and the column, then the fastest that the sample can get to the detector is the dead time denoted by tM in the diagram.

7 0
3 years ago
Describe the differences between polyp and medusa
stealth61 [152]
One difference is that some animals are polyp and some are medusa.


The other difference is that some animals have medusa in their life or polp in their life cycle.


Hope these two differences helps :D
5 0
2 years ago
When iron metal reacts with oxygen, the reaction can form Fe2O3. Write a balanced chemical equation for this reaction, and find
ryzh [129]
The balanced equation is 
4Fe+3O₂⇒2Fe₂O₃

We know that the mole of Fe₂O₃ is 6, and since the ratio between oxygen and <span>Fe₂O₃ is 3:2, we can see that

3:2 = x:6 (3 oxygen moles can make 2 </span>Fe₂O₃ moles = x oxygen moles can make 6 <span>Fe₂O₃ moles)
</span><span>
Multiply outside and inside (3*6 , 2*x) and put them on opposing sides of the equation

2*x = 3*6
2x=18
x=9
Therefore 9 moles of oxygen is needed.

</span>
6 0
2 years ago
Read 2 more answers
Who discovered significance of 6.022 x 10 to the 23 power
Masja [62]
6.02 x 10^23 is Alvogrado's number (Amedio Alvogrado is the name). This formula is determined to find the amount of particles within a substance by a mole.
I hope this helps!
6 0
2 years ago
Other questions:
  • How is chemical energy related to chemical change
    9·2 answers
  • At stp potassium is classified as?
    5·1 answer
  • As a trend or pattern,the atomic radius go from ______ left to right across the period but ______ top to bottom down a group
    9·1 answer
  • What is the relationship between exposure to a virus and developing and immunity to it<br> ?
    11·1 answer
  • Why do atoms always have an overall neutral charge?
    11·2 answers
  • What property has a higher value than silicon
    9·1 answer
  • Which of the following factors will affect the freezing point of a solution?
    7·1 answer
  • ¿Qué compone a un ecosistema?
    15·1 answer
  • What are some of the ways that people can Reduce their use of fossil fuels?
    14·2 answers
  • How many neutrons are present in an atom of
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!