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
asambeis [7]
3 years ago
5

ammonia (NH3(g) Hf=-45.9 kJ/mol) reacts. with oxygen to produce nitrogen and water (H2O(g) Hf = -241.8 kJ/mol according to the e

quation below. 4NH3(g) + 3O2(g)---> 2N2(g) +6H2O(g) what is the enthalpy of the reaction
Chemistry
2 answers:
weeeeeb [17]3 years ago
8 0

Answer:The answer given is 100% correct. I think kids are just looking at the wrong problem thats why it has a 2 star.. B is correct

Explanation:edge 2020

kherson [118]3 years ago
6 0

Answer:

ΔH°_rxn = -195.9 kJ·mol⁻¹

Explanation:

                              4NH₃(g) + 3O₂(g) ⟶ 2N₂(g) +6H₂O(g)

ΔH°_f/(kJ·mol⁻¹):    -45.9          0                 0        -241.8

The formula relating ΔH°_rxn and enthalpies of formation (ΔH°_f) is

ΔH°_rxn = ΣΔH°_f(products) – ΣΔH°_f(reactants)

ΣΔH°_f(products) = -6(241.8) = -1450.8 kJ

ΣΔH°_f(reactants) = -4(45.9) = -183.6 kJ

ΔH°_rxn =  (-1450.8 + 183.6) kJ = -1267.2 kJ

You might be interested in
I need help in science
astraxan [27]
The answer is D . I hope this help you :) .
7 0
2 years ago
Plz help this was due yesterday butttttt i didn’t want to do it...
sergejj [24]
So what am I suppose to answer here?
8 0
3 years ago
Read 2 more answers
How do we know that K2CrO4 and Ba(NO3)2 are not solids?​
navik [9.2K]
I would say is because of the Boron from O?
7 0
3 years ago
For the chemical reaction 2HBr(aq)+Ba(OH)2(aq)⟶2H2O(l)+BaBr2(aq) write the net ionic equation, including the phases.
Crazy boy [7]

Answer:

2H⁺(aq) + 2OH⁻(aq)  --> 2H2O(l)

Explanation:

2HBr(aq)+Ba(OH)2(aq)⟶2H2O(l)+BaBr2(aq)

We break the compounds into ions. Only compounds in the aqueous form can be turned into ions.

The ionic equation is given as;

2H⁺(aq)  +  2Br⁻(aq)  + Ba²⁺(aq) + 2OH⁻(aq)   --> 2H2O(l)  +  Ba²⁺(aq)  + 2Br⁻(aq)

Upon eliminating the spectator ions; The net equation is given as;

2H⁺(aq) + 2OH⁻(aq)  --> 2H2O(l)

8 0
3 years ago
What did Ernest Rutherford’s gold foil experiment demonstrate about atoms ?
Alchen [17]

Answer:

Their positive charge is located in the small nucleus

Explanation:

Ernest Rutherford performed the gold foil experiment in 1911 where he used alpha particles generated from a radioactive source to bombard a thin gold foil.

In his experiment, he observed that the bulk of the alpha particles passed through the gold foil, just a tiny fraction was deflected back. To explain his findings, Rutherford proposed that an atom is made of positively charged centre where nearly all the mass is concentrated called nucleus. Surrounding the nucleus is a large space containing electrons.

4 0
3 years ago
Read 2 more answers
Other questions:
  • Solid sodium hydroxide <br> NaOH<br> decomposes into gaseous water and solid sodium oxide .
    9·1 answer
  • Larisa pumps up a soccer ball until it has a gauge pressure of 61 kilopascals. The volume of the ball is 5.2 liters. The air tem
    13·1 answer
  • What is The strength of a hurricane is ranked from 1 to 5 on the _________________.
    7·1 answer
  • Is light a particle or wave
    6·1 answer
  • Which substance will retain the largest amount of energy from the sun
    15·2 answers
  • Did an oxidation-reduction reaction occur in the reaction between copper sulfate and sodium sulfide?
    14·2 answers
  • How does plants make food
    13·2 answers
  • Make a model for the the ionic bonding of Al and Cl.
    13·1 answer
  • Your answer should have the same number of significant figures as the starting measurement.
    15·1 answer
  • If 5.85 moles of CaCO3 are used in an experiment, how many moles of carbon dioxide are created? (Be sure to include units in you
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!