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
Law Incorporation [45]
3 years ago
12

Which form of energy is converted to thermal energy when propane burns in air?

Chemistry
1 answer:
kolezko [41]3 years ago
8 0
Chemical because the propane has stored chemical energy which is being released and a by-product of that propane is heat or themal energy.
You might be interested in
What is the concentration of a solution containing 1.11 g sugar (sucrose, C12H22O11, MW = 342.3 g/mol, d = 1.587 g/cm3) in 432 m
djyliett [7]

Answer:

0.0075 M

0.0060 m

Explanation:

Our strategy here is to use the definition of molarity and molality to solve this question.

The molarity is the number of moles of solute, sucrose in this case, per liter of solution.

The molality is the number of moles of solute per kilogram of solvent.

So the molarity of the  solution is

M = moles of solute/ V solution

As we see we need the volume of solution since we are only given the volume of solvent, but this will be easy to compute since we have the density of  sucrose.

So determine the moles of sucrose , and the volume of solution:

Moles sucrose = 1.11 g/342.3 g/mol = 3.24 x 10⁻³ M

Volume of solution = Vol Sucrose + Vol glycerine

d = m/V ⇒ Vsucrose = m / d = 1.11 g/ 1.587 g/cm³ = 0.70 cm³

Vol solution = 432 mL + 0.70 mL = 432.7 mL  (1cm³  = 1 mL)

Vol solution = 432.7 mL x 1 L / 1000 mL = 0.4327 L

⇒ M = 3.2 x 10⁻³  mol / 0.4327 L = 0.0075  M

For the molarity what we need is to first calculate the kilograms of glycerine from the given density:

d = m/v ⇒ m = d x v = 1.261 g/cm³ x  432 cm³ = 544.75 g

Converting to Kg:

544.75 g x 1 Kg/ 1000 g = 0.544 kg

Now the molality is

m = mol sucrose/ kg solvent = 3.24 x 10⁻³ mol / 0.544 Kg = 0.0060 m

Note: In the calculation for  volume of solution we could have approximated it to that of just glycerine, but since the density of sucrose was given we calculated the total volume of solution to be more rigorous.

8 0
3 years ago
Which subatomic particles affect the mass of an atom
klasskru [66]

Answer:

protons and neutrons

Explanation:

those particles account for 99.99% of mass

6 0
3 years ago
The energy needed to remove an electron from an atom is called
Arlecino [84]

Ionization energy, also called ionization potential, in chemistry, the amount of energy required to remove an electron from an isolated atom or molecule

3 0
3 years ago
2KClO3 —> 2KCl2+ 3O2
garik1379 [7]

Answer:

False. The balanced equation should be

2KClO3-->2KCl + 3O2

it is a decomposition reaction.

3 0
2 years ago
13. What does the Law of Conservation of Mass state?
Hoochie [10]
The law of conservation of mass states that mass can neither be created or destroyed in a chemical reaction.
5 0
2 years ago
Other questions:
  • Mercury(II) oxide (HgO) decomposes to form mercury (Hg) and oxygen (O2). The balanced chemical equation is shown below.
    9·1 answer
  • Based on its location on the periodic table, how many electrons does oxygen have in its outer energy level?
    14·2 answers
  • When an atom undergoes beta decay, wich of the following is true?
    12·1 answer
  • There are different atoms and each type of atom is called an​
    11·1 answer
  • What is the formula for aluminum nitrite ?
    14·1 answer
  • In which of these situations is convection most likely the main form of heat transfer?
    12·2 answers
  • How long does it take to fill one train car full of nuclear power can keep a power plant running
    8·1 answer
  • What might your life be like if Mr. Fleming didn't notice that the mold killed the bacteria?
    9·2 answers
  • Nitrogen gas can be prepared by passing gaseous ammonia over solid copper (II) oxide at high temperatures. If 18.1 g of Nh3 is r
    11·1 answer
  • Matter doesn't have to take up space as long as it has mass.
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!