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
FinnZ [79.3K]
3 years ago
12

Hydrogen reacts with chlorine to form hydrogen chloride (HCl (g), mc012-1.jpgHf = –92.3 kJ/mol) according to the reaction below.

Chemistry
2 answers:
SVEN [57.7K]3 years ago
8 0

Answer:

A. The enthalpy of the reaction is –184.6 kJ, and the reaction is exothermic.

Explanation:

this is the correct answer on ed-genuity, hope this helps! :)

Kobotan [32]3 years ago
3 0

<u>Given:</u>

H2(g) + Cl2 (g) → 2HCl (g)

<u>To determine:</u>

The enthalpy of the reaction and whether it is endo or exothermic

<u>Explanation:</u>

Enthalpy of a reaction is given by the difference between the enthalpy of formation of reactants and products

ΔH = ∑nHf (products) - ∑nHf (reactants)

      = [2Hf(HCl)] - [Hf(H2) + Hf(Cl2)] = 2 (-92.3) kJ = - 184.6 kJ

Since the reaction enthalpy is negative, the reaction is exothermic

<u>Ans:</u> The enthalpy of reaction is -184. kJ and the reaction is exothermic

You might be interested in
What else is produced during the replacement reaction of silver nitrate and potassium sulfate? 2AgNO3 + K2SO4 Ag2SO4 + ________
OleMash [197]

Answer:

c

Explanation:

5 0
2 years ago
Read 2 more answers
Given that a 12.00 g milk chocolate bar contains 8.000 g of sugar, calculate the percentage of sugar present in 12.00 g of milk
neonofarm [45]
So in order for us to know the percentage of sugar present in a 12.00 g of milk chocolate, what we are going to do is that, we just have to divide 8 by 12 and multiply in by 100 and we get 66.67. Therefore, the percentage of sugar present in 12.00 g of milk chocolate bar is 66.67%. Hope this answers your question. Have a great day!
5 0
3 years ago
Read 2 more answers
A buffer solution is prepared by dissolving equal amounts of ascorbic acid and sodium ascorbate, the conjugate base, in water. T
Gnom [1K]

THANKS

\color{pink} \rule{500pt}{100000000pt}

8 0
2 years ago
1. a) Binary ionic and binary molecular compounds have what two things that are similar in their composition? (b) What is one wa
kherson [118]
Binary compounds consist of only two distinct elements, regardless of whether the compound is ionic or molecular. Water is a binary compound, as are calcium chloride, ammonia, and potassium iodide. 

<span>An ionic binary compound consists of cations of one element and anions of another. KI is an ionic binary compound, composed of K cations and I anions. </span>

<span>A molecular binary compound does not consist of discrete ions, but of molecules. H2O is molecular, as is NH3.</span>
7 0
3 years ago
What energy sources boil the water in geothermal energy
GREYUIT [131]
The steam rotates a turbine that activates a generator, which produces electricity. Many power plants still use fossil fuels to boil water for steam. Geothermal power plants, however, use steam produced from reservoirs of hot water found a couple of miles or more below the Earth's surface.
5 0
3 years ago
Read 2 more answers
Other questions:
  • This process of heat transfer by conduction would NOT work __________
    5·2 answers
  • How would you prepare a saturated solution of potassium nitrate?
    9·1 answer
  • A sample of oxygen gas was collected via water displacement. since the oxygen was collected via water displacement, the sample i
    7·1 answer
  • HCl +KOH ---&gt; KCl + H20
    11·1 answer
  • Which statement describes how heat flows from the coffee to the part of the spoon in the coffee?
    7·2 answers
  • A ___________ is a heterogeneous mixture in which the particles settle to the bottom.
    14·1 answer
  • What is the atomic mass that of magnesium
    11·1 answer
  • Eddie is performing an experiment. He asked the question what type of soil makes plants grow the fastest. He has four plants. He
    14·1 answer
  • Uhu khanay sai kia hota hai
    9·1 answer
  • How many atoms are in 15.1g of potassium?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!