2 years ago

An irreversible change would be?

Chemistry

1 answer:

klemol [59]2 years ago

8 0

Answer:

A. Chipping ice to flakes

Explanation:

You can't reverse the ice becoming flakes. They will stay like that until they melt

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A scientist finds that one volume of an unknown gas X combines with two volumes of another gas Y to form two volumes of a new ga

MariettaO [177]

Answer:

Gas X

Explanation:

The given reaction can be written in the form of chemical equation as shown below as:

$X+2Y\rightarrow 2XY_2$

According to law of conservation of mass, the moles of each substance in the reaction must be equal on both reactant and product side.

Also, the question asks for the gas which is diatomic. $XY_2$ cannot be diatomic as the formula contains 3 atoms.

Between gas X and gas Y , <u>X has to be diatomic for the reaction to balance </u>as:

$X_2+2Y\rightarrow 2XY_2$

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3 years ago

Idenatify the pair in which the formula does not match the name

MissTica

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3 years ago

Are there more metals or nonmetals on the periodic table?

bogdanovich [222]

Answer:yes

Explanation:

I think so

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3 years ago

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¿Un kilo y medio a cuantos gramos equivale?

Anastaziya [24]

Answer:

Por tanto, podemos concluir que en medio kilogramo hay un total de 500 gramos

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3 years ago

What is the density at 20 degrees Celsius of 12.0 mL of a liquid that has a mass of 4.05g?

zmey [24]

Answer:

<h3>The answer is 0.34 g/mL</h3>

Explanation:

The density of a substance can be found by using the formula

$density = \frac{mass}{volume} \\$

From the question we have

$density = \frac{4.05}{12} \\ = 0.3375$

We have the final answer as

Hope this helps you

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3 years ago

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