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2 years ago

Does the reaction above satisfy the law of conservation of matter? Use details to support your work.

Physics

1 answer:

Leona [35]2 years ago

6 0

Answer:

No, the amount of matter of the reactants is not equal to the amount of matter of the products.

Explanation:

According to the conservation of matter the amount of matter of the reactants is equal to the amount of matter of the products. The given reaction is

$2H_2O_2=H_2+O_2$

In the reactant side there are $2\times 2=4$ molecules of hydrogen and $2\times 2=4$ molecules of oxygen.

In the product side there are 2 molecules of both hydgrogen and oxygen. So the reaction does not satisfy the law of conservation of mass.

The balanced reaction would be

$2H_2O_2=2H_2+2O_2$ .

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What do work and energy have in common

spayn [35]

Energy and Work have the same unit of measurement which is Joules in SI units.

Explanation:

A Joule of Work is said to be done on an object when energy is transferred to that particular object.
If two objects are involved, when one object transfers energy onto the second, a joule of work is said to be done by the first object.
Work is also the application of force on an object over a distance. So Work = Force × Displacement
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3 years ago

What is the numerical value of the slope of the line (without units)?<br>0.083<br>24<br>8.3<br>12

tankabanditka [31]

As close as I can read it, it appears to be

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3 years ago

The sound level measured in a room by a person watching a movie on a home theater system varies from 40 dB during a quiet part t

UNO [17]

Answer:

$\alpha=-3.01dB$

Explanation:

From the question we are told that:

Sound level intensity

$\triangle I=40dB-80dB$

Generally the equation for intensity level is mathematically given by

$\alpha=10log_{10}(I/I_x)dB$

Where

I= Intensity measured

$I_x=Threshold\ of\ audibility$

$I_x= 10-12 W / m2$

$\alpha= 10 log10 \frac{I_1}{I_x} - 10 log10 \frac{}I_2{I_x}$

$\alpha= 10 log10 \frac{I_1}{I_2}$

$\alpha=10 log10\frac{40}{80}$

$\alpha=-3.01dB$

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2 years ago

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3 years ago

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kykrilka [37]

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2 years ago