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
creativ13 [48]
2 years ago
15

Describe the overall enthalpy of the chemical reactants compared to the enthalpy of the chemical products in the combustion of p

ropane.
Chemistry
1 answer:
Veronika [31]2 years ago
3 0

Answer:

A thermochemical equation for the combustion of propane (C3H8)(C3H8) is written as follows:

C3H8(l)+5O2(g)→3CO2(g)+4H2O(g);ΔH∘rxnC3H8(l)+5O2(g)→3CO2(g)+4H2O(g);ΔHrxn∘ = -2202.0 kJ/mol

The value given for ΔH∘rxnΔHrxn∘ means that:

a. the reaction of one mole of propane absorbs 2202 kJ of energy from the surroundings.

b. the reaction is endothermic.

c. the enthalpy of formation of propane is 2202 kJ/mol.

d. the reaction of one mole of propane releases 2202 kJ of energy to the surroundings.

e. None of these.

You might be interested in
Which move will produce light with the longer wavelength
mylen [45]

Answer:

Running

Explanation:

8 0
3 years ago
SpongeBob's mother is so proud of her son and his new wife, SpongeSusie, as they are excepting a little sponge. She knows that t
Afina-wow [57]
The chance of their baby being blue is a 25% chance. There is a 50% chance that their baby will carry the trait but not have the feature. Since SpongeBob is heterozygus he carries the blue trait so his kid has a 50% chance of being blue from his genes. SpongeSusie is blue so she has a 100% of her child being blue.
4 0
4 years ago
For the reaction 2Na + 2H20 - 2NaOH + H2 how many grams of sodium hydroxide are
ololo11 [35]

Answer:

Explanation:

Moles of sodium

=

130

⋅

g

22.99

⋅

g

⋅

m

o

l

−

1

=

5.65

⋅

m

o

l

.

Now you have the stoichiometric equation:

2

N

a

(

s

)

+

2

H

2

O

(

l

)

→

2

N

a

O

H

(

a

q

)

+

H

2

(

g

)

↑

⏐

If there are

5.65

⋅

m

o

l

of metal, clearly

5.65

⋅

m

o

l

2

dihydrogen gas are evolved......, i.e.

2.83

⋅

m

o

l

H

2

. Typically, in a question like this, you would also be asked to calculate the volume the gas occupies under standard conditions, and the

p

H

of the resultant solution (would it be high, low, neutral?).

3 0
4 years ago
Read 2 more answers
Which represents the ionization of a strong electrolyte?
olga55 [171]
The answer is K3PO4(s) → 3K+(aq) + PO43–(aq) since water-soluble ionic tripotassium phosphate dissociates completely into K+ and PO43– ions when dissolved, that is, no K3PO4 remains in the solution. Carbonic acid H2CO3 and acetic acid CH3COOH are weak electrolytes since they are weak acids that do not completely ionize, while nonelectrolyte CH3OH do not dissociate into ions.
5 0
3 years ago
Read 2 more answers
How much energy is needed to warm 13.0 milligrams of water at 1.0 degrees Celsius to 75.00 degrees Celsius. Is this process endo
KonstantinChe [14]

use the equation q=mcΔt. convert 13 mg to g. so it becomes .013g which will be the mass. C is specific heat of water which is always 4.184. Delta t is 75-1 which is 74. (.013)(4.184)(74) = 4.025

8 0
4 years ago
Other questions:
  • 1. What is polarity?
    6·1 answer
  • Ethylene glycol is used as an antifreeze in car. if 400 g of ethylene glycol is added to 4.00 kg of water, what is the molaity?
    6·1 answer
  • Which energy conservation occurs when you start running
    7·2 answers
  • When did Darwin publicly share his views of evolution?
    6·1 answer
  • Name Three Ways That a liquid is different from a gas
    11·2 answers
  • Predict the formula for ba 2 and s-2.
    12·2 answers
  • Predict the product of the following Wittig reaction. Be sure your answer accounts for stereochemistry, where appropriate. If mu
    11·1 answer
  • Which is an example of diffraction?
    11·1 answer
  • for each pair of compounds below , identify the one that would be expected to have more ionic character.explain you choice. (a)N
    6·1 answer
  • The local weather station is predicting that a warm front will pass through Charlotte, NC in two days.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!