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Darina [25.2K]
3 years ago
6

When methane (CH4) burns, it reacts with oxygen gas to produce carbon dioxide and water. The unbalanced equation for this reacti

on isCH4(g)+O2(g) = CO2(g)+H2O(g)This type of reaction is referred to as a complete combustion reaction.What coefficients are needed to balance the equation for the complete combustion of methane? Enter the coefficients in the order CH4, O2, CO2, and H2O, respectively.Express your answer as four integers, separated by commas (e.g., 1,2,3,4).
Chemistry
1 answer:
Delvig [45]3 years ago
7 0

Answer:

CH4+2O2 = CO2+2H2O

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Consider two gases, A and B, are in a container at room temperature. What effect will the following changes have on the rate of
Oksanka [162]

Answer:

B: increase.

Explanation:

When we are considering two gases A and B in a container at room temperature .

We have to find the change on  rate of reaction when the number of molecules of gases A is doubled

Let [A]=a and [B]=b

A+B\rightarrow product

Rate of reaction

R_1=k[A][B]=kab

We know that concentration is increases with increase in number of moles

When the number of molecules of gases A is doubled then concentration of gases A increases.

Therefore ,[A]=2a

Rate of reaction

R_2=k(2a)(b)=2kab

R_2=2R_1

Hence, the rate of reaction is  2 times the initial rate of reaction.Therefore, the rate of reaction will increase when the number of molecules of gases A is doubled.

Answer: B: increase.

4 0
3 years ago
An atom of calcium contains 20 protons how many electrons does it have
harina [27]
20.

Atomic number is equivalent to its protons and electrons. :)
4 0
3 years ago
Salt water is best described as _______.
Readme [11.4K]

Answer:

Salt water is, A. a mixture

3 0
3 years ago
Read 2 more answers
How many liters are contain 1.75 mol of f2 gas at stp?
Vanyuwa [196]
At STP condition 1 mol of any ideal gas will have a volume of 22.4L

1.75 mol of F2 x 22.4 L / 1 mol = 39.2 L
3 0
3 years ago
An aqueous solution is made by dissolving 26.4 grams of barium sulfide in 349 grams of water.
lukranit [14]

Answer:

Molality = 0.43 m

Explanation:

Given data:

Mass of barium sulfide = 25.4 g

Mass of water = 349 g (349 g/1000 = 0.349 Kg)

Molality of water = ?

Solution:

Number of moles of barium sulfide:

Number of moles = mass/molar mass

Number of moles = 25.4 g/169.39 g/mol

Number of moles = 0.15 mol

Molality:

Molality = number of moles o f solute/ Kg of solvent

Molality = 0.15 mol / 0.349 Kg

Molality = 0.43 m

4 0
3 years ago
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