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
NeTakaya
3 years ago
8

???????????????????????????????????????

Chemistry
1 answer:
Galina-37 [17]3 years ago
3 0

Answer:

c

Explanation:

defiantly

You might be interested in
What is the shape of graphite​
VashaNatasha [74]

Answer:

The molecular formula lists the symbol of each element within the compound followed by a number (usually in subscript). The letter and number indicate how many of each type of element are in the compound. If there is only one atom of a particular element, then no number is written after the element.

7 0
3 years ago
What type of reaction occurs when potassium iodide is combined with lead (II) nitrate?
VARVARA [1.3K]

Answer:

double replacement occurs

8 0
3 years ago
Kerosene, a common space-heater fuel, is a mixture of hydrocarbons whose "average" formula is C₁₂H₂₆.
padilas [110]

The calculated enthalpy of formation of kerosene is 365.4 kJ and heat produced is 78650.3 kJ

For this, we need the normal enthalpy of formation given below

ΔH∘f(CO2)=−393.5kJ/molΔH∘f(H2O)\s=−241.8kJ/molΔH∘f(O2)=0kJ/mol

We shall now determine the enthalpy of kerosene formation:

H rxn = 24 mol H f (CO2) + 26 mol H f (H2O) + 2 mol H f (C12H26) + 37 mol H f (O2) + 1.50 104 kJ = 9444 kJ + 6286.8 kJ + 1500 kJ 2 mol H f (C12H26) = 730.8 kJ H f (C12H26) = 365.4 kJ

Kerosene has a density of 0.74 g/mL.

Kerosene volume (V) equals 0.63 gallons, or 0.63 x 3785.4, or 2384. 8 mL.

We shall now calculate the mass (m) of kerosene:

ρ=mVm\s=ρ×Vm\s=0.749g/mL×2384.mLm\s=1786.2g

We shall now discover the heat that 1786 generated.

Two grams of kerosene

Kerosene's molar mass is 170.33 g/mol.

The mass of two moles of kerosene is equal to 2*170.33*340.66g.

1.50104kJ of heat are generated by 340.66 g of kerosene.

1786 produced heat.

Kerosene 2 grams = 1.50 104 kJ 340.66 1786.2 g = 78650.3 kJ

Learn more about enthalpy here-

brainly.com/question/13996238

#SPJ4

5 0
1 year ago
HELP ASAP
Bezzdna [24]
A. I think sorry if it’s wrong
5 0
3 years ago
Pls help me<br> First person to Ans correctly will get branliest
nignag [31]

Answer:

do it by yourself 6637373

5 0
2 years ago
Read 2 more answers
Other questions:
  • What observations would lead you to believe that the ink is actually a mixture?
    6·1 answer
  • A form of energy that is stored in a stretched rubber band is called
    15·1 answer
  • What do tissues combine to form?
    5·2 answers
  • PLEASE ANSWER !!!
    15·2 answers
  • Which is a nervous system test?
    13·1 answer
  • Write the complete balanced chemical equation _A+_BC3-&gt;_AC2 +_ B
    11·1 answer
  • Which of the following reactions shows a chemical chand
    8·2 answers
  • Blonde hair is a dominant trait. (True or flase)​
    11·2 answers
  • Elements has physical and chemical properties most similar to silicon?
    11·1 answer
  • 8. How much heat, in kilojoules, is needed to produce 1850 grams of ammonia (NH3),
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!