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
slamgirl [31]
3 years ago
5

When H2(g) reacts with Cl2(g) to form HCl(g) , 185 kJ of energy are evolved for each mole of H2(g) that reacts. Write a balanced

thermochemical equation for the reaction with an energy term in kJ as part of the equation. Note that the answer box for the energy term is case sensitive. Use the SMALLEST INTEGER coefficients possible and put the energy term (including the units) in the last box on the appropriate side of the equation. If a box is not needed, leave it blank.
Chemistry
1 answer:
Katyanochek1 [597]3 years ago
7 0

Answer:

H₂(g) + Cl₂(g) → 2HCl(g) + 185kJ

Explanation:

In a chemical reaction, enthalpy of reaction ΔH is a thermodynamic constant that gives information if the reaction is exothermic (Produce heat if reacts) or endothermic (Consume heat if reacts).

In the reaction:

H₂(g) + Cl₂(g) → 2HCl(g) ΔH = -185kJ

As ΔH <0, the reaction is exothermic, that means, <em>produce heat</em>, writing a balanced thermochemical equation:

<em>H₂(g) + Cl₂(g) → 2HCl(g) + 185kJ</em>

<em></em>

The enthalpy is as a product beacause an exothermic reaction produces heat.

I hope it helps!

<em></em>

You might be interested in
On the periodic table, what is used to determine the order of elements? (Use your own words? Help please!!!
Angelina_Jolie [31]

Elements are listed in order of increasing atomic number from the left to the right.

4 0
2 years ago
Read 2 more answers
What is the graph of the orange line and is it a positive or negative connotation
dimulka [17.4K]

Answer:

Positive

Explanation:

4 0
2 years ago
Calculate the number of moles found in 3.045x1024 atoms of helium.<br><br> PLS HELP
Kisachek [45]

Explanation:

so for this u have to use this equation where

Moles = number of particle/6.02×10^23

= 3.045 × 10^24/6.02×10^23

= 5.0581

write it to 3 S.F so 5.06 moles

4 0
2 years ago
About how many elements make up everything on Earth?
Alex73 [517]
92 i am pretty sure


hope i helped 
7 0
3 years ago
Which element will react with cold water? (a) sodium (b)calcium (c)zinc (d)iron (e)copper (g)mercury
rjkz [21]

The answer is a) sodium!

3 0
2 years ago
Other questions:
  • Explain how human activity can affect the carbon cycle.
    5·2 answers
  • Based of the chemical reaction below, if you have 3.56x10^23 molecules of C3H8, how many liters of CO2 gas will be produced at S
    9·1 answer
  • How many grams are present in a sample of aluminum?
    15·1 answer
  • Complete this equation for the dissociation of na2co3(aq). omit water from the equation because it is understood to be present.
    15·2 answers
  • How do you determine the possible quantum numbers for an atom?
    9·1 answer
  • A tank contains 200 gallons of water in which 300 grams of salt is dissolved. A brine solution containing 0.4 kilograms of salt
    6·1 answer
  • 5)
    11·1 answer
  • # of protons = 48 <br><br> Cadmium <br> Titanium <br> Oxygen <br> Krypton
    5·1 answer
  • 2. When liquid water freezes, it tends to
    6·1 answer
  • What is the biggest human advancement that has happened on earth?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!