What reaction would the chemical equation 2H2O→2H2+O2 represent?


combustion of water


decomposition of water


replacement of water


formation of water

Answers

Answer 1

Answer:

decomposition of water

Explanation:

The reaction will represent the decomposition of water. It usually carried by an electrolytic process in the laboratory.

Water molecule is broken down into its constituent hydrogen gas and oxygen gas components. The breaking down of one compound to give other compounds is decomposition. This is not a replacement reaction. In decomposition, we often start with a single reactant and results in one or more products.
Answer 2

Answer:

decomposition of water

Explanation:

i took the quiz and it was right


Related Questions

How many moles are in 35.0g of sodium (Na).

Answers

Answer:

2.5 I don't have a explanation

If a(n) ___
ended question is too challenging, respondents will abandon the survey

Answers

Answer:

Open ended question

Explanation:

Built different :]

Answer:

if an OPEN end question is too challenging respondents will abandon the surevy

Explanation:

if compose means to put together then decompose means to what?​

Answers

Answer:

Break apart

Explanation:

Decompose: to break down or cause to break down into component elements or simpler constituents.

We cooleda water bottle so the volume was lowered to .050 L, then we heated it to 373 K and thevolume increased to .10 L. What was the initial temperature?

Answers

Answer:

[tex]186.5\ \text{K}[/tex]

Explanation:

[tex]V_1[/tex] = Initial volume = 0.05 L

[tex]V_2[/tex] = Final volume = 0.1 L

[tex]T_1[/tex] = Initial temperature

[tex]T_2[/tex] = Final temperature = 373 K

From the ideal gas law we have

[tex]PV=nRT[/tex]

So

[tex]V\propto T[/tex]

[tex]\dfrac{V_1}{V_2}=\dfrac{T_1}{T_2}\\\Rightarrow T_1=\dfrac{V_1}{V_2}\times T_2\\\Rightarrow T_1=\dfrac{0.05}{0.1}\times 373\\\Rightarrow T_1=186.5\ \text{K}[/tex]

The intial temperature is [tex]186.5\ \text{K}[/tex].

What are the five properties of matter?

Answers

Explanation:

Physical Properties

color (intensive)

density (intensive)

volume (extensive)

mass (extensive)

boiling point (intensive): the temperature at which a substance boils.

melting point (intensive): the temperature at which a substance melts.

Write down the names of compounds represented by the following formulae:
a. Al2(SO4)3
b. CaCl2
c. K2SO4
d. KNO3
e. CaCO3



Hellp plss

Answers

A-Aluminium sulphate.
B-Calcium Chloride.
C-Potassium sulphate.
D-Potassium Nitrate .
E-Calcium Carbonate.

The compounds have been formed by the combination of molecules and atoms. The names are a. aluminum sulfate, b. calcium chloride, c. potassium sulfate, d. potassium nitrate, and e. calcium carbonate.

What is the chemical formula?

The chemical formula has been defined as the representation of the chemical compound or molecules with the aid of symbols, letters, and coefficients to show the proportions, arrows, parentheses, signs, etc.

The chemical formulas are named as:

Al₂(SO₄)₃ - aluminum sulfate. It has been used in purifying water, sewage treatment, tanning, paper industries, etc.CaCl₂ - calcium chloride. It is an ionic compound used in making electrolytes and sports drinks.K₂SO₄ - potassium sulfate. It has been used for making fertilizers for tobacco and vegetable crops.KNO₃ - potassium nitrate. It is an oxidizer used for making explosives and fertilizers.CaCO₃ - calcium carbonate. It is used as a dietary product to satisfy the needs for calcium and vitamin D for bone strengthening and formation.

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What happens when the North Pole of one bar magnet is near the south Pole of another bar magnet?

A.Both attraction and repulsion
B.neither attraction nor repulsion
C.attraction
D.repulsion

Answers

The two with attract. (Opposite will always attract)!
But if you tried to put two south bar magnets together they would repulse (the same with always repulse)!
Hope this helps!:))

When the North Pole of one bar magnet is near the South Pole of another bar magnet, they will attract each other. So, the correct option is C, attraction. This is because opposite magnetic poles attract each other, while like magnetic poles repel each other.

What is a magnetic field?

A magnetic field is a region in space where a magnetic force can be detected. It is created by the movement of charged particles, such as electrons, protons, and ions. A magnetic field can be produced by a magnet, an electric current, or a changing electric field.

When the North Pole of one bar magnet is near the South Pole of another bar magnet, they will attract each other. This is because the magnetic field lines of the two magnets interact in such a way that they try to align with each other. Since opposite magnetic poles attract each other, the North Pole of one magnet will be attracted to the South Pole of the other magnet.

The magnetic force between the two magnets depends on the strength of the magnetic field and the distance between the magnets. The closer the magnets are, the stronger the magnetic force will be.

Therefore option C, attraction is correct.

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Explain how fossil evidence is evidence of plate tectonics.

Answers

Answer:

Answer

Explanation:

Evidence from fossils, glaciers, and complementary coastlines helps reveal how the plates once fit together. Fossils tell us when and where plants and animals once existed. ... This distribution of fossils led to theories that the southern continents were once joined in a supercontinent called Gondwana.

Answer: Evidence from fossils, glaciers, and complementary coastlines helps reveal how the plates once fit together. Fossils tell us when and where plants and animals once existed.

Explanation: I hoped that helped plzz mark as brainliest !!

Why is it important to know the weather?

Answers

Because It could be deadly weather and you would hate to go out and get stuck in that weather

Answer:

so you can dress based on how hot or cold it's gonna be outside

What is the relationship between plastic and gasoline?

Answers

Answer:

Explanation:

Both plastic and gasoline are products of pretroleum

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