The reason why H₂O +Cu does not proceed to a product is that
copper has a lower activity than hydrogen and cannot replace it (answer A)
Explanation
Replacement reaction is type of a reaction in which element react with compound and take place of another element in that compound.
That is the more reactive element replaces the less reactive element from it's compound.
Since H₂ is more reactive than Cu in reactivity series therefore no reaction occur between H₂O +Cu since Cu cannot replace H₂ from its compound.
Answer:
summer solstice
Explanation:
on june solstice the northen hemisphere leans more toward the sun giving us longer days and more strong sunlight and It's the opposite in the Southern Hemisphere where june marks the start of winter thus its the shortest day of the year
The answer is temperature
Answer:
The answer to your question is CH₄ + 2O₂ ⇒ CO₂ + 2H₂O
Explanation:
Data
Methane = CH₄
Oxygen = O₂
Process
A combustion reaction is a kind of chemical reaction in which an organic compound reacts with oxygen to generate water and carbon dioxide.
Chemical reaction
CH₄ + O₂ ⇒ CO₂ + H₂O
Reactants Elements Products
1 C 1
4 H 2
2 O 3
Balanced chemical reaction
CH₄ + 2O₂ ⇒ CO₂ + 2H₂O
Reactants Elements Products
1 C 1
4 H 4
4 O 4
The balanced chemical equation for the combustion of methane is CH4 + 2O2 -> CO2 + 2H2O. This equation shows that a methane molecule reacts with two oxygen molecules to produce a carbon dioxide molecule and two water molecules while maintaining a balance as per the Law of Conservation of Mass.
The combustion of methane occurs when methane gas (CH4) combines with oxygen (O2) to produce carbon dioxide (CO2) and water (H2O). This reaction can be represented by the following balanced chemical equation:
CH4 + 2O2 -> CO2 + 2H2O
This means that one molecule of methane reacts with 2 molecules of oxygen to produce one molecule of carbon dioxide and two molecules of water. The chemical equation is balanced, meaning that the number of atoms of each element is the same on both sides of the equation as required by the Law of Conservation of Mass.
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b.The nitrogen and oxygen in Earth's atmosphere keep the surface pleasantly warm.
c.Even in low-Earth orbit, some atmospheric gas is still present.
d.Atmospheric pressure decreases with altitude.
Answer:
b.The nitrogen and oxygen in Earth's atmosphere keep the surface pleasantly warm.
Explanation:
Hello,
Based on the behavior of the Earth's atmosphere, it is widely known that the surface temperature depends on the altitude since the Earth's nucleus has the capacity to warm the outer surface as it is closer to it. In such a way, the warmness of the surface depends on the nucleus rather than the presence of nitrogen and oxygen.
Best regards.
Among the provided options, the statement falsely attributing the Earth's warmth to nitrogen and oxygen in the atmosphere is incorrect. It is the greenhouse gases that keep Earth's surface warm, not nitrogen and oxygen.
The statement that is not true among the options provided is option b. The nitrogen and oxygen in Earth's atmosphere do not keep the Earth's surface pleasantly warm. It's the greenhouse gases in the atmosphere, which include gases like carbon dioxide and methane, that trap heat from the Sun and keep the Earth's surface warm. Nitrogen and oxygen, which make up the majority of the Earth's atmosphere, do not have this property.
Other statements are correct. Scattering of light by the Earth's atmosphere does cause the blue colour of the sky (a), atmospheric gas is still present even in low-Earth orbit (c), and atmospheric pressure indeed decreases with altitude (d).
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