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viva [34]
2 years ago
7

What kind of reaction is this ? P+02

Chemistry
1 answer:
maw [93]2 years ago
3 0

Answer:

Synthesis reaction

Explanation:

To know which option is correct, it important that we know what each option represents.

Synthesis reaction is a reaction in which two different elements react to form a single compound. For example

X + Y —> XY

Decomposition reaction is a reaction in which a compound splits into two or more simpler substance. For example

XY —> X + Y

Single Replacement reaction is a reaction in which one element replaces or displaces another element from a compound. For example

X + YZ —> XZ + Y

Double Replacement reaction is a reaction in which the parts of two ionic compounds exchange their ions to form a new compound. For example

WX + YZ —> WZ + YX

Now, considering the equation given above i.e

P + O₂ —> P₄O₁₀

We can see that P and O₂ reacted to produce a new compound (i.e P₄O₁₀).

Thus, the reaction is a synthesis reaction because two different elements (i.e P and O₂) reacted to form a single compound (i.e P₄O₁₀).

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Ethanol had a boiling point of 78.4°C. Propane has a boiling point of -42°C. Suggest why.​
Gwar [14]

Answer:

Chemical compounds all have different melting points.

Explanation:

chemical compounds all have different freezing and boiling points. Different chemical compounds means they will have different chemical structures.

7 0
2 years ago
A mole of cars stacked end to end would stretch back and forth across the United States how many times? Measured length of 1 car
vekshin1

Answer:

i am potato

Explanation:

4444141+5-45458/85*55474

3 0
2 years ago
The molar mass of an unknown gas was measured by an effusion experiment. It was found that it took 60 s for the gas to effuse, w
Marizza181 [45]

Answer:

The molar mass of the gas is 44 g/mol

Explanation:

It is possible to solve this problem using Graham's law that says: Rates of effusion are inversely dependent on the square of the mass of each gas. That is:

\frac{r_1}{r_2} =\frac{\sqrt{M_2} }{\sqrt{M_1} }

If rate of effusion of nitrogen is Xdistance / 48s and for the unknown gas is X distance / 60s and mass of nitrogen gas is 28g/mol (N₂):

\frac{X/48s}{X/60s} =\frac{\sqrt{M_2} }{\sqrt{28g/mol} }

6,61 = √M₂

44g/mol = M₂

<em>The molar mass of the gas is 44 g/mol</em>

<em></em>

I hope it helps!

4 0
3 years ago
Explain, in your own words, why different elements produce different colors of light when heated.
fgiga [73]
Different elements produce different colors of light when heated because the electrons in these elements have different permissible energy levels. When an element is heated, the electrons inside it become excited and move to an higher energy level from the ground state. When the electrons drop from this higher energy level, they typically emit energy quantum, the color of the light that is observed at this stage depends on difference that exist in the two energy levels.<span />
7 0
2 years ago
Read 2 more answers
Which describes one way that Aristarchus's explanation of the movement of objects in the sky was different from other scientists
Natalija [7]

Answer:

The correct option is;

He argued that Earth rotates on its axis

Explanation:

The hypothesis that the Sun is at the center of the universe and the Earth, the other planets and other heavenly bodies are revolving around the Sun was first proposed by Aristarchus of Samos who also believed that the motion of the stars where actually due to the rotation of the Earth about its axis

However, the propositions where rejected at the time because it was contrary to perception and senses such that a revolving Earth has to have a moving "great wind" in the air around us

4 0
2 years ago
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