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3 years ago

The picture shows a scientist collecting data from an ice core whats the answer giving brainliest

Chemistry

1 answer:

ziro4ka [17]3 years ago

5 0

Answer:

Explanation:

Gas change and climate change are very similar and thats why its c

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Predict whether the bond between each pair of atoms will be no polar convalent, polar covalent or ionic

bekas [8.4K]

Yes sir I’m not sure why what I said so yes sir I’m not gonna go to the bathroom I’m just gonna go home I’m gonna be there in about a week or two I don’t uueiueyey

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3 years ago

Acetylene gas is often used in welding torches because of the very high heat produced when it reacts with oxygen gas, producing

UkoKoshka [18]

Answer: 1.2 moles of carbon dioxide is produced for the given value of oxygen.

Explanation:

The chemical reaction for the combustion of acetylene follows the equation:

$2C_2H_2+5O_2\rightarrow 4CO_2+2H_2O$

By stoichiometry of the reaction:

5 moles of oxygen produces 4 moles of carbon dioxide.

So, 1.5 moles of oxygen will produce = $\frac{4}{5}\times 1.5=1.2mol$ of carbon dioxide.

Hence, 1.2 moles of carbon dioxide is produced for the given value of oxygen.

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4 years ago

What most likely happens when water vapor cools? A. It changes into gas. B. It changes into liquid. C. Its temperature increases

GREYUIT [131]

B- it changes into liquid. hope this helps

3 0

3 years ago

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Chlorine gas is held in a container with volume of 1.15L. The container initially held 3.53 x 10^−2 mol of chlorine gas, but aft

Paha777 [63]

Answer:

The grams that were removed are 0.787

Explanation:

We can raise two situations, with Ideal Gases Law.

First (S1): P. 1.15L =0.0353 . R .T

Second (S2): P. 0.790L = n . R .T

If we compare them, we must make a division, so we can know the moles of gas, that are still remained in the container.

S1/S2

P . 1.15L / P. 0.790L = 0.0353 . R.T / n . R. T

Pressure, temperature and R, are constant, so they can be cancelled.

So finally we have.

1.15L / 0.790L = 0.0353 moles / n

n = 0.0353 moles (0.790L /1.15L)

n = 0.0242 moles

Initially we have 0.0353 moles; afterwards we have 0.0242 moles. In the reaction we lost (0.0353 - 0.0242) = 0.0111 moles

The grams that were removed are:

Moles . molar mass = mass

0.0111 m . 70.9 g/m = 0.787 g

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3 years ago

Do all liquids boil at the same tempature?

I am Lyosha [343]

Different fluids have different boiling points depending on the bonding between the particles and the mass of the particles. The heavier the particles, the stronger the bonding, the higher the boiling point will be.

hope this helped :)

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4 years ago

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