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
Mama L [17]
2 years ago
11

Methane is the most common hydrocarbon. Where is methane produced

Chemistry
2 answers:
katrin [286]2 years ago
8 0
The Answer to Where is methane commonly produced is:The United States Of America.-brock
Ann [662]2 years ago
4 0

in the digestive systems of livestock and some bacteria- gradpoint

You might be interested in
Which part of the cell does this illustration represent?
Svetllana [295]
Answer: Mitochondria. The mitochondria contains cristae.
6 0
3 years ago
Read 2 more answers
Phthalates used as plasticizers in rubber and plastic products are believed to act as hormone mimics in humans. The value of ΔHc
jeka94

Answer:

T_f = 25.05°C

Explanation:

Given:

the value of ΔHcomb (heat of combustion) for dimethylphthalate (C10H10O4) is = 4685 kJ/mol.

mass = 0.905g of dimethylphthalate

molar mass = 194.18g dimethylphthalate

number of moles of dimethylphthalate = ???

T_i = 21.5°C

C_{calorimeter} = 6.15 kJ/°C

T_f = ???

since we have our molar mass and mass of dimethylphthalate ;we can determine the number of moles as;

0.905g of dimethylphthalate ×  \frac{1 mole (dimethylphthalate)}{194.184g(dimethylphthalate)}

number of moles of dimethylphthalate = 0.000466 moles

Heat released = moles of dimethylphthalate × heat of combustion

=  0.000466 moles × 4685 kJ

= 21.84 kJ

∴ Heat absorbed by the calorimeter =  C_{calorimeter} (T_f-T_i} )

21.84 kJ =6.15 kJ/°C * (T_f-21,5^0C)

21.84 KJ = (6.15 kJ/^0C * T_f) - (6.15 kJ/^0C*21.5^0C)

21.84 KJ = (6.15 kJ/^0C * T_f) - 132.225 kJ

21.84 KJ + 132.225 kJ = (6.15 kJ/^0C * T_f)

154.065 kJ = (6.15 kJ/^0C * T_f)

T_f = \frac{154.065kJ}{6.15kJ/^0C}

T_f =25.05°C

4 0
3 years ago
Which situation would lead to increased competition
I am Lyosha [343]

I would say B because c and d would decrease competition and a would do the same, or just kill the ecosystem.

Hope this helps and don't forget to hit that heart :)

8 0
2 years ago
If you have 2.1 liters of hydrogen gas (at STP), what mass of hydrogen gas would you have?
GuDViN [60]

Answer:

0.19 g

Explanation:

Step 1: Given data

Volume of hydrogen at standard temperature and pressure (STP): 2.1 L

Step 2: Calculate the moles corresponding to 2.1 L of hydrogen  at STP

At STP (273.15 K and 1 atm), 1 mole of hydrogen has a volume of 22.4 L if we treat it as an ideal gas.

2.1 L × 1 mol/22.4 L = 0.094 mol

Step 3: Calculate the mass corresponding to 0.094 moles of hydrogen

The molar mass of hydrogen is 2.02 g/mol.

0.094 mol × 2.02 g/mol = 0.19 g

6 0
3 years ago
What is the tube connecting the larynx and the lungs?
user100 [1]
Bronchi that is the answer
3 0
2 years ago
Other questions:
  • PLEASE HELP!<br><br> List the 5 basic steps of the scientific method in order
    12·1 answer
  • What is the initial material of hydraulic lime?
    13·1 answer
  • HELP!!!!!!!!!!!!!!
    9·2 answers
  • How many moles of aluminum (Al) produced in the reaction if 30.00 grams of magnesium (Mg) was consumed. (Atomic mass for Mg =24.
    11·1 answer
  • What element is found in liver and is needed to prevent anemia or “tired” blood?
    9·1 answer
  • What causes tectonic plates to move slowly over time?
    11·1 answer
  • When you add an inert gas, the reaction
    12·1 answer
  • Every ________ will have its own unique set of quantum numbers.
    6·1 answer
  • A plate of food has both thermal energy (form of kinetic energy) and chemical energy (form of potential energy).
    15·2 answers
  • Why do elements in group 8A (the noble gases) tend not to gain or lose electrons?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!