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3 years ago

Is 2C2H2+502 balanced or unbalanced?

Chemistry

1 answer:

Naddika [18.5K]3 years ago

4 0

Hey there!

I am not the greatest in this subject but I believe that 2C2H2+502 is balanced!

If i am incorrect, I am very sorry and would love any feedback!

Hope i made your day easier.

Have a nice day and happy Halloween!

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A student wants to make 5.00% solution of rubidium chloride using 0.37 g of the substance. what mass of water will be needed to

chubhunter [2.5K]

Answer:-

7.03 g

Explanation:-

Let the mass of water needed be M.

So total mass = M + 0.37

Now 5% of this solution has 0.37g of rubidium chlorude.

∴ (M +0.37) x (5/100) = 0.37

M +0.37 = 0.37 x 100/5

M + 0.37 = 7.4

M = 7.4-0.37

=7.03

Thus water to be added is 7.03 gram

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3 years ago

Nicolaas constructed a working model of the hydrologic cycle during science class. He used an open flame, liquid water, two larg

Nastasia [14]

Surface, condensation, evaporation, precipitation

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3 years ago

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Which part of a seed plant develops into sperm cells? o embryo pollen 0 seed O xylem

netineya [11]

Answer:

Pollen

Explanation:

bc i take notes and also my sister studies bio

PLZ GIMME BRAINLIEST

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3 years ago

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A sound wave has a wavelength of 0.450

Karolina [17]

Answer:

The wave's frequency is 733 hertz.

Explanation:

The wavelength (λ) is the minimum distance between two points of the wave that are in the same state of vibration.

Frequency (f) is the number of vibrations that occur in a unit of time.

The speed of propagation (v) is the speed with which the wave propagates in the middle. Relate wavelength (λ) and frequency (f) inversely proportionally using the following equation: v = f * λ.

In this case you know that:

Wavelength of the sound wave (λ) = 0.450 meters
Speed of the sound wave (v)= 330 meters per second= 330 $\frac{meters}{second}$

Replacing you get:

$330 \frac{meters}{second} = f* 0.450 meters$

Then:

$f=\frac{330 \frac{meters}{second} }{0.450 meters}$

f=733.33 hertz≅733 hertz

Finally, the wave's frequency is 733 hertz.

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3 years ago

The distance from the trough of one wave to the trough of another wave is wave amplitude

Alexxandr [17]

This is actually incorrect, the distance as stated above either from trough to trough or from crest to crest within a corresponding wave, would be referred or called as the wavelength of the given wave.

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4 years ago

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