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Cloud [144]
3 years ago
9

Classify the following reaction:2h2o 2h2 o2

Chemistry
2 answers:
lord [1]3 years ago
5 0
The classified form of the following reaction should looke like that :2 H2O (l) 2 H2(g) + O2(g). WHat about the name of such reaction, I am pretty sure that it is called <span>decomposition. I bet you have the same in the option list, but next time check it carefully.</span>
Delicious77 [7]3 years ago
3 0

Explanation:

When a substance or compound dissociates into two or more new compounds then this type of chemical reaction is known as decomposition reaction.

For example, 2H_{2}O \rightarrow 2H_{2} + O_{2}

Here, water dissociates into hydrogen and oxygen molecules.

Thus, we can conclude that the given reaction is a decomposition reaction.

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What type of energy does water gain as it sits in the sun?
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Answer:

A. Heat energy

Explanation:

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3 years ago
Use a word equation to describe the chemical reaction that takes place when an
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Answer: One of the most common iron oxides is iron (III) oxide, known as rust. The chemical formula for rust is Fe2O3. Rust is formed when iron reacts with oxygen in moist air. The following chemical equation represents the reaction: 4Fe + 3O2 → 2Fe

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3 years ago
Enough of a monoprotic weak acid is dissolved in water to produce a 0.0144 0.0144 M solution. The pH of the resulting solution i
alexdok [17]

Answer:

The value of dissociation constant of the monoprotic acid is 1.099\times 10^{-3}.

Explanation:

The pH of the solution = 2.46

pH=-\log[H^+]

2.46=-\log[H^+]

[H^+]=0.003467 M

HA\rightleftharpoons H^++A^-

Initially

0.0144         0      0

At equilibrium

(0.0144-x)       x       x

The expression if an dissociation constant is given by :

K_a=\frac{[A^-][H^+]}{[HA]}

K_a=\frac{x\times x}{(0.0144-x)}

x=[H^+]=0.003467 M

K_a=\frac{0.003467 \times 0.003467 }{(0.0144-0.003467 )}

K_a=1.099\times 10^{-3}

The value of dissociation constant of the monoprotic acid is 1.099\times 10^{-3}.

3 0
4 years ago
When one atom of carbon reacts with two atoms of oxygen, they combine to form one molecule of carbon dioxide. How many atoms of
tankabanditka [31]

The equation is: C+O2=>CO2

Since we got 10 molecules of CO2 new balanced equation would be 10C+10O2=>10CO2

from this equation we can see that we have 10 molecules of oxygen, however ,we need to find atoms. There are 2 atoms in the oxygen molecule so we need to multiply 10 by 2 which gives us 20 atoms.

The answer: there are 20 atoms of oxygen

4 0
3 years ago
Is the following detente true or false? Paramecia have two nuclei
blondinia [14]
Paramecia have a micro nuclei and a macro nuclei.
6 0
3 years ago
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