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
pantera1 [17]
3 years ago
12

During the combustion of methane (CH4), one mole of methane gas combines with two moles of oxygen gas (O2) to produce one mole o

f carbon dioxide gas (CO2) and two moles of water vapor. Which of the following chemical equations correctly represents the combustion of methane described above
Chemistry
1 answer:
astraxan [27]3 years ago
3 0

Answer:

CH4(g) +2O2____ CO2(g) +2H2O (l)

You might be interested in
If you leave a glass of water and ice on the kitchen counter long enough, after a while you will have just a glass of water. why
irakobra [83]
The heat of the water is shared with the ice and there for you drink will get cold but your ice will melt away from the heat going in the ice
8 0
3 years ago
A liquid sample, with a density of .0915 g/mL has a mass of 17.7 grams.
Arlecino [84]

The relation between density, mass and volume is

Density = \frac{Mass}{Volume}

1) to calculate = volume

given:

Density = 0.0915 g/ mL

mass = 17.7 grams

formula used:

Density = \frac{Mass}{Volume}

Thus

Volume Volume = \frac{Mass}{Density} = \frac{17.7 g}{0.915 \frac{g}{mL} }  = 193.44 mL

Answer: 193.44 mL

2) the mass of sample will be

mass = density X volume = 0.0915\frac{g}{mL} X 76.5 mL = 6.99 = 7 g

Answer: 7 g

5 0
3 years ago
A gas occupies 50.0mL at a standard temp. What volume would it occupy at 335 Celsius with
tino4ka555 [31]

Answer:

V₂ = 111.3 mL

Explanation:

Given data:

Initial volume of gas = 50.0 mL

Initial temperature = standard = 273.15 K

Final volume = ?

Final temperature = 335 °C (335+273.15 = 608.15 K)

Solution:

The given problem will be solve through the Charles Law.

According to this law, The volume of given amount of a gas is directly proportional to its temperature at constant number of moles and pressure.

Mathematical expression:

V₁/T₁ = V₂/T₂

Now we will put the values in formula.

V₁/T₁ = V₂/T₂

V₂ = V₁T₂/T₁  

V₂ = 50.0  mL ×608.15 K / 273.15 k

V₂ = 30407.5 mL.K / 273.15 K

V₂ = 111.3 mL

7 0
3 years ago
Which of the following is true if an atom has 8 protons , 8 electrons and 9 neutrons ?
m_a_m_a [10]
You didn’t include options but if you want the element. 0-17 has 8 protons and 9 neutrons
8 0
4 years ago
How Does The Modern Periodic Table Arrange Elements? By Atomic Mass By Atomic Number
Vlada [557]
By increasing Atomic number
7 0
3 years ago
Other questions:
  • After mixing an excess PbCl2 with a fixed amount of water, it is found that the equilibrium concentration of Pb2 is
    12·1 answer
  • How many iron atoms are in 5.4 mol of Fe203?
    8·1 answer
  • Beth made the chart shown. Which headings best complete the chart?
    6·1 answer
  • Which statements are scientific statements
    11·1 answer
  • Water’s boiling point would be close to
    5·1 answer
  • One way to inscribe an equilateral triangle in a circle is to first inscribe
    7·1 answer
  • Write the acid-base reaction between the weak base ammonia NH3 and the strong acid hydrochloric acid HCL.
    15·1 answer
  • What is an atom? Is it stable? Give reasons to support your answer.
    10·1 answer
  • All of these are characteristics of compact bone EXCEPT:
    14·2 answers
  • Help for brainlist
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!