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
Katyanochek1 [597]
3 years ago
5

Identify the decomposition reaction. 2nh3 + h2so4 ⟶ (nh4)2so4 2nabr + ca(oh)2 ⟶ cabr2 + 2naoh 2 no2 ⟶ 2 o2 + n2 3pb + 2h3po4 ⟶ 3

h2 + pb3(po4)2
Chemistry
2 answers:
TEA [102]3 years ago
7 0

A decomposition reaction should look like

A ------> B +C+...

It has to have only one reactant and several products.

2 NO2 ⟶ 2 O2 + N2

Andrei [34K]3 years ago
3 0

Answer : The correct option is, 2NO_2\rightarrow 2O_2+N_2

Explanation :

Decomposition reaction : It is a type of reaction in which a single larger compound decomposes to give two or more smaller molecules as a product.

The general representation of decomposition reaction is :

AB\rightarrow A+B

From the given options,

2NO_2\rightarrow 2O_2+N_2 this reaction a decomposition reaction in which a single nitrogen dioxide decomposes to give oxygen gas and nitrogen gas as a product.

While the other reactions,

2NH_3+H_2SO_4\rightarrow (NH_4)_2SO_4 this reaction is a combination reaction in which the two or more molecules combine to form a larger single molecule as a product.

2NaBr+Ca(OH)_2\righatrrow CaBr_2+2NaOH this is a double displacement reaction in which the cation and the anion of the two reactant exchange their places to give two another compounds as a product.

3Pb+2H_3PO_4\rightarrow 3H_2+Pb_3(PO_4)_2 this is a single displacement reaction in which the more reactive metal displaces the least reaction metal from its compound.

Hence, the decomposition reaction will be, 2NO_2\rightarrow 2O_2+N_2

You might be interested in
Which factors cause a rising tide? A. The moon's gravity and Earth's rotation B. Density differences due to salinity and tempera
Irina18 [472]
It a because the moons gravity pulls the water and the earths rotation moves the bump/wave
3 0
3 years ago
Read 2 more answers
Which best describes a neutralization reaction?
gregori [183]

Answer:

D got it right

Explanation:

3 0
3 years ago
Read 2 more answers
Arrange the elements in decreasing order of first ionization energy.
just olya [345]

Answer:

The decreasing order of first ionization energy: Se > Ge > In > Cs

The decreasing order of first ionization energy: x > y > z

Explanation:

Ionization energy refers to the energy needed to completely pull out an electron from the valence shell of a neutral gaseous atom.

First ionization energy is the energy involved in the removal of first valence electron.

<u><em>In the periodic table, down the group, as atomic radius of elements increases, the ionization energy decreases </em></u>

<u><em>Whereas, across a period, as atomic radius of elements decreases, the ionization energy increases.</em></u>

PART (A):

Position of the given elements in the periodic table:

Indium (In): Group 13, period 5

Germanium (Ge): Group 14, period 4

Selenium (Se): Group 16, period 4

Caesium (Cs): Group 1, period 6

Thus, the increasing order of atomic radius: Se < Ge < In < Cs

<u>Therefore, the decreasing order of first ionization energy: </u><u>Se > Ge > In > Cs</u>

PART (B):

Given elements:

element x: radius = 110 pm

element y: radius = 199 pm

element z: radius = 257 pm

Thus, the increasing order of atomic radius: x < y < z

<u>Therefore, the decreasing order of first ionization energy:</u><u> x > y > z</u>

5 0
3 years ago
What letter on the model titration curve corresponds to the point where ph equals the numerical value of pka for hpr? what speci
irakobra [83]

Letter C on the model titration curve corresponds to the point where pH equals the numerical value of pKa for HPr

<h3>What is a titration curve?</h3>

A titration curve is a graph of the pH of a solution against increasing volumes of an acid or a base that is added to the solution.

The pH of a solution is the negative logarithm to base ten of the hydrogen ion concentration and is a measure of the acidity or alkalinity of the solution.

The pKa is the acid dissociation constant of an acid solution.

In a titration of a strong acid and strong base, the pH at equivalence point is equal to the pKa of the acid.

The equivalence point is the point when equal moles of acids and base has reacted.

In the given titration curve, pH = pKa at point C.

In conclusion, for a titration curve of strong acid and base, at equivalence point, pH is equal to pKa of acid.

Learn more about equivalence point at: brainly.com/question/23502649

#SPJ1

4 0
2 years ago
The nitrate anion is Select one: a. a strong acid. b. a strong base. c. amphoteric. d. a strong reducing agent. e. a strong oxid
svp [43]

Answer: Option (e) is the correct answer.

Explanation:

Chemical formula of a nitrate ion is NO^{-}_{3} and it acts as a strong oxidizing agent because it itself gets reduced easily.

As we know that an oxidizing agent tends to oxidize other substances by itself gaining electrons. As a result, there will occur a decrease in its oxidation state.

The oxidation number of nitrogen in NO^{-}_{3} is +5. So, it gains electrons and helps in oxidizing other substances.

Thus, we can conclude that the nitrate anion is a strong oxidizing agent.

6 0
3 years ago
Other questions:
  • What are 3 words that start with "d" that you should be able to do after learning about Homeostasis
    9·1 answer
  • 11 swimming pool water can be kept free of harmful bacteria by adding aqueous sodium chlorate(i),naocl. this reacts with water t
    15·1 answer
  • What do you think would happen if you had a very small amount of water in a glass and you
    15·1 answer
  • Sam places 5 g of baking soda in 5 g of liquid vinegar, and notices fizzing. After all the fizzing stops, 5 g of liquid remains.
    9·2 answers
  • Which property of potential energy distinguishes it from kinetic energy?
    9·1 answer
  • Write a word or phrase begining with each letter of the word CHANGE that describes changed you have observed in everyday objects
    10·1 answer
  • How the relative density of a substance is related to the density calculate the density of iron if its relative density is 2 and
    14·1 answer
  • What causes an ice cube to melt after you take it out of the freezer? Write at least 3 sentences in your answer. INCLUDE ATTRACT
    5·1 answer
  • What structures do both plant cells and animal cells contain?
    11·2 answers
  • 2. Does the aluminum sample (the can) contain more than, (less than or exactly one mole of aluminum? Support answer with calcula
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!