Equation: CH4 + 202 CO2 + 2H20

What is the mole ratio between oxygen and methane (CH4)? If you use 15 moles of 02, how many grams of methane would you predict would be needed?

Answer:

2:1

1.2 × 10² g

Explanation:

Step 1: Write the balanced combustion equation

CH₄ + 2 O₂ ⇒ CO₂ + 2 H₂O

Step 2: Establish the appropriate molar ratio

According to the balanced equation, the molar ratio of O₂ to CH₄ is 2:1.

Step 3: Calculate the moles of CH₄ required to react with 15 moles of O₂

We will use the previously established molar ratio.

15 mol O₂   1 mol CH₄/2 mol O₂ = 7.5 mol CH₄

Step 4: Calculate the mass corresponding to 7.5 moles of CH₄

The molar mass of CH₄ is 16.04 g/mol.

7.5 mol × 16.04 g/mol = 1.2 × 10² g

This is a freebie for anyone for one get the crown

PLZZZ HELP CHEMISTRY QUESTION DOWN BELOW IMAGE SHOWWN BELOW

ASAP PLS

A 18.7 g piece of aluminum (which has a heat capacity of 0.89 JPC-g) is
heated to 82.4°C and dropped into a calorimeter containing water
(specific heat capacity of water is 4.18 J/gºC) initially at 22.3°C. The final
temperature of the water is 24.3°C. Ignoring significant figures, calculate
the mass of water in the calorimeter. *

A gas has a volume of 13.4 L at 17°C. What is the volume of the gas at standard temperature?

what is reduction potential?​

I REALLY NEED HELP ITS DUE TODAY TY IN ADVANCE <3

Answer the following question by studying the given
structure of the stoma

1)Name the atoms of element
2)In which group of the periodic table do these element lie?​

In each term equation below a blank line shows one term missing the terms may be an elemental symbol a coefficient or a subscript decide which term would balance the equation write the missing term in the second column the. Determine the reactants third column and products forth column of the reaction some reactions may have only one reactant or product and other reactions may have only one reactant or product and other reactions may have multiple reactants or products write your answers in the spaces in the table the first reaction involves sodium chloride not sodium carbon and iodine

What solid figure has two bases, but no lateral faces?

cylinder
rectangular prism
triangular prism
cone

Due today:
How do you think the birds "predicted" Hurricanes

What must remain constant if Charles' law is to be applied to a
given sample of a gas?
a Pressure
b Volume
C Temperature
d None of the above

A liquid medicine is labeled as having 5% active ingredient, by volume. If
the dosage of the medicine is 50 mL, how much of the active ingredient is
to be ingested? *

How many moles can be found in 1.5 x 10^24 atoms of Calcium?

4. Automotive airbags inflate when sodium azide, NaN 3, rapidly decomposes to its constituent elements according to the chemical equation, 2 NaN3 → 2 Na + 3 N2. 2 Na + 3 N2. How many moles of nitrogen are produced when 10000. milligrams of sodium azide decomposes? 0.07691142 mone a. 3.0000 moles 357 2 b. 0.15385 moles c. 0.23077 moles d. 230.77 moles​

How many grams are in 5 moles of calcium fluoride (CaF2)?

Methanol has a melting point of -97 degrees celsius and a boiling point of 65 degrees celsius. What phase is methanol in at 80 degrees celsius? (Solid, Gas, or Liquid?)

4. How many moles of NaOH(s) would be required to react with 1.90 g of Cu(NO3)2 (aq)
according to the balanced equation:
Cu(NO3)2(aq) + 2 NaOH(aq) → Cu(OH)2(s) + 2 NaNO3(aq)

A student added copper wire to a flask containing silver nitrate after a period of three hours,the flask and its contents looked like this Did a chemical reaction occur? Use evidence and scientific reasoning to support your claim

1
is the amount of space
that matter in an object occupies.​

What is thisssssssssss

Scientists are trying to understand the composition of substances on
different planets. Which best describes how scientists are probably working
on this problem?
A. Scientists share information with other scientists who approach
the problem in the same way so that they get support for their
observations.
B. Scientists with different perspectives approach the problem in
various ways, but they all make observations and look for
patterns.
O C. Scientists with the same perspectives use similar experiments so
that they can compare results and draw the same conclusions.
D. Scientists study the problem in the same way because they have
similar backgrounds and share information with each other.

Image shown below of a chemistry question i would really appreciate the help

What are two main ways that water is being polluted or wasted

Which process created the gases of earth’s first atmosphere?

a.volcanic activity
b.weathering
c.photosynthesis
d.photolysis

Calculate the mass of each element in the
compound by multiplying its molar mass by the
number of moles of the element present in one
mole of the compound
Mass N =
Mass H =
Mass O =

For the following equilibrium reaction, what will happen if heat is removed (the temperature goes down)?



CO(g) + 2H2(g) ⇌ CH3OH(g) + heat

Can somebody please help me!!!

Human blood contains a buffer of carbonic acid (H_2 CO_3) and bicarbonate anion (HC〖O_3〗^-) in order to maintain blood pH between 7.35 and 7.45, as a value higher than 7.8 or lower than 6.8 can lead to death. In this buffer, hydronium and bicarbonate anion are in equilibrium with carbonic acid. Furthermore, the carbonic acid in the first equilibrium can decompose into CO_2 gas and water, resulting in a second equilibrium system between carbonic acid and water. Because CO_2 is an important component of the blood buffer, its regulation in the body, as well as that of O_2 , is extremely important. The effect of this can be important when the human body is subjected to strenuous condition.
Carbonic acid buffer:
H_2 CO_3 (aq)+ H_2 O(l) ↔H_3 O^+ (aq)+HC〖O_3〗^- (aq)
1. Write the equilibrium constant expression K_c for the carbonic acid buffer in the blood.

Which two changes would make this reaction product-favored? 3H2 + N2 ⇄ 2NH3 + energy  A. Decreasing the pressure  B. Increasing the temperature  C. Increasing the pressure  D. Reducing the temperature

can someone help me with 5?