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fgiga [73]
3 years ago
5

Methane is a major component of natural gas, which is used as a fuel in homes.Write a balanced equation for the complete oxidati

on reaction that occurs when methane (CH4) burns in air.
Chemistry
1 answer:
nexus9112 [7]3 years ago
5 0

Answer:

CH4(g) + 2O2(g) --> CO2(g) + 2H2O(g)

Explanation:

Methane is an hydrocarbon. Whenever hydrocarbon undergoes a reactio with oxygen, the products formed are carbon(iv) oxide and water.

The equation of the reaction is given as;

CH4 + O2 --> CO2 + H2O

Upon balancing the equation, we have;

CH4(g) + 2O2(g) --> CO2(g) + 2H2O(g)

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Modeling Nuclear Processes Quick Check
Valentin [98]

The phrase which best describes nuclear fusion is: A. the process by which small nuclei combine into a larger nucleus.

A nuclear reaction can be defined as a type of chemical reaction in which the nucleus of an atom of a radioactive chemical element is transformed by either being joined (fusion) or split (fission) with the nucleus of another atom of a radioactive chemical element and accompanied by a release of energy.

Generally, there are two (2) main types of nuclear reaction and these include:

  • <u>Nuclear fission:</u> it involves the collision of a heavy atomic nucleus with a neutron, thereby causing a split and release of energy.
  • <u>Nuclear fusion:</u> it involves the joining of two smaller nuclei of atoms to form a single massive or heavier (larger) nucleus with the release of energy.

In conclusion, nuclear fusion is best described as the process by which small nuclei combine into a larger nucleus, accompanied by a release of energy.

Read more: brainly.com/question/24040465

4 0
3 years ago
Why is coal not classified as a mineral?
Fittoniya [83]

A mineral is a naturally occurring chemical compound, usually of crystalline form and abiogenic in origin. A mineral has one specific chemical composition. Coal is not a mineral because it is organic while a mineral is inorganic that have repeating crystalline structure.

4 0
3 years ago
How much heat does it take to melt 5.0g solid copper?
Leya [2.2K]

Answer:

Q=1.04kJ

Explanation:

Hello,

In this case, for latent heat (phase change) we need to consider the enthalpy associated with the involved process, here, melting or fusion; thus, the enthalpy of fusion of copper is 13.2 kJ/mol, therefore, the heat is computed as:

Q=m\Delta H_{fus}

Nevertheless, since the given enthalpy is per mole of copper, we need to use its atomic mass to perform the correct calculation as follows:

Q=5.0g*\frac{1mol}{63.54}* 13.2\frac{kJ}{mol}\\ \\Q=1.04kJ

Which is positive as it needs to be supplied to the system.

Best regards.

5 0
3 years ago
A cell is placed in a salt solution that has the same concentration as the inside of the cell. What will happen to the cell?
nata0808 [166]

Answer:

d

Explanation:

4 0
3 years ago
I don’t know the answers to these pls help
stepladder [879]

Answer:

4. Option C. Pentane.

5. Option D.

Explanation:

4. Hydrocarbons are compound containing carbon and hydrogen only. Hydrocarbons are said to be saturated when they contain only carbon to carbon single bond. All alkanes are saturated hydrocarbon.

The correct answer is pentane.

5. Isomerism is the phenomenon whereby two or more compounds have the same molecular formula but different structural patterns. The compounds involved are called isomers.

A careful observation of the diagram above shows that only option D satisfied the definition of Isomerism as the two compound both have the same molecular formula as C3H8O but different structural patterns.

Note: option C does not contain isomers as Isomerism can not occur in a compound having just 1 carbon atom.

5 0
3 years ago
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