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
Novosadov [1.4K]
3 years ago
8

Identify the single displacement reaction. C4H12 + 7O2 ⟶ 6H2O + 4CO2 2H2 + O2 ⟶ 2H2O Al2S3 ⟶ 2Al + 3S Cl2 + 2KBr ⟶ 2KCl + Br2

Chemistry
1 answer:
Varvara68 [4.7K]3 years ago
8 0

Answer:- Cl_2+2KBr\rightarrow 2KCl+Br_2

Explanations:-  The first reaction is combustion reaction as the hydrocarbon is burned in presence of oxygen to give carbon dioxide and water.

Second reaction is the synthesis reaction as in general a synthesis reaction looks like:

A+B\rightarrow AB

Third reaction is the decomposition reaction as it looks opposite of synthesis reaction.

AB\rightarrow A+B

In general, a single displacement reaction looks like:

AB+C\rightarrow AC+B

Fourth reaction is single replacement reaction as bromine is replaced by chlorine.

So, the correct choice is the last reaction, Cl_2+2KBr\rightarrow 2KCl+Br_2 .

You might be interested in
Chlorophyll pigments are separated using paper. what is the stationary phase in this experiment
Llana [10]
Paper is a stationary phase
4 0
3 years ago
Which of the following would you NOT find in a bacterial cell?
Svetradugi [14.3K]

Answer:

Cell membrane

B

Explanation:

Capsules, fimbriae, pili, flagella, and even the cell wall

6 0
2 years ago
Read 2 more answers
Paul determines that the hydrogen ion concentration of his unknown solution is 3.60×10^-5 M. what is the pH of this solution?​
vivado [14]

Answer:

<h2>pH = 4.44 </h2>

Explanation:

The pH of a substance can be found by using the formula

p H  =  -   log[ H^{ + }  ]

where [ H+ ] is the hydrogen ion concentration of the solution

From the question

[ H + ] = 3.60 × 10^-5 M

So the pH is

pH =  -  log(3.60 \times  {10}^{ - 5} )  \\  =4.44369749923

We have the final answer as

<h3>pH = 4.44 </h3>

Hope this helps you

4 0
3 years ago
Root nodules are associations between bacteria and plant roots responsible for
max2010maxim [7]

Answer: Root nodules are associations between bacteria and plant roots responsible for nitrogen fixation.

Explanation:

  • As nitrogen present in atmosphere cannot be used by plants directly.
  • Nitrogen present in atmosphere is converted into nitrogen compounds by bacteria which is present in root nodules of a plant.
  • These compounds of nitrogen are then used by plants for various functions.
8 0
3 years ago
The _____________ have a single electron in the highest occupied energy level.
IRISSAK [1]
In order to help the student expand his/her knowledge I will help answer the question. This in hope that the student will get a piece of knowledge that will help him/her through his/her homework or future tests. The ________ have a single electron in the highest occupied energy level. The missing word to complete this statement and make it true is Alkali Metals.
<span>
I hope it helps, Regards.</span>
5 0
3 years ago
Other questions:
  • A hydrate is determined to be 45.43% water and 54.57% CoCl. Find the chemical formula and name
    10·1 answer
  • Convert 32.56 km/hr into ft/hr
    12·1 answer
  • How many protons, neutrons and electrons are in these atoms?
    5·1 answer
  • 1.Vertical columns in the periodic table indicate what information? A.periods B.liquids C.synthetic elements D.groups and famili
    14·1 answer
  • How many atoms are in 2.70 moles of iron (Fe) atoms?
    8·1 answer
  • Toluene is subjected to the action of the following reagents in the order given: (1) KMnO4,OH-, heat; then H3O (2) HNO3, H2SO4 (
    9·1 answer
  • 2NaCl ---&gt; 2Na + Cl2<br>What are the atoms of the products ​
    11·2 answers
  • ΔU for a van der Waals gas increases by 475 J in an expansion process, and the magnitude of w is 93.0 J.
    13·1 answer
  • What is the possible results of the test of a few drops of a mixture of sodium hydroxide and copper(ii) tetraoxosulphate (vi) so
    5·1 answer
  • Can I find a tutor to help me with this question?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!