3 years ago

What is the volume of 2.0 moles of N2?

Chemistry

1 answer:

GalinKa [24]3 years ago

8 0

Answer:

1.2506

Explanation:

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If a rock contains rounded grains of sediments, what can you tell about that rock?

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Answer:

sedimentary rock

Explanation:

sediment + rock

= sedimentary rock

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3 years ago

What is the mass of 0.25 mol of sulfur atom

tatiyna

Answer:

8.0 g

Explanation:

To convert moles to grams, you need to use the molar mass. The molar mass of sulfur is 32.06. The molar mass is the atomic mass of the atom.

(0.25 mol) × (32.06 g/mol) = 8.015 g

Round for significant figures.

8.015 g ≈ 8.0 g

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4 years ago

Which one of the following represents a<br> chemical change?

11111nata11111 [884]

We need options... sorry

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3 years ago

If the atoms that share electrons have an unequal attraction for the electrons, the bond is called

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Answer:

A polar covalent bond

Explanation:

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2 years ago

What is the reduction half-reaction for the equation below?

Katen [24]

Answer:

$MnO_4^-+8H^++5e^-\rightarrow Mn^{2+}+4H_2O$

Explanation:

Hello there!

In this case, since redox reactions are characterized by the presence of a reduction reaction, whereby the oxidation of the element decreases, and an oxidation reaction whereby the oxidation of the element increases.

In such a way, for the given chemical equation, we can see Fe is increasing its oxidation state from 2+ to 3+, which means it is oxidized. On the flip side, Mn is being reduced from 7+ (MnO₄⁻) to 2+ and this, the reduction half-reaction is:

$MnO_4^-+8H^++5e^-\rightarrow Mn^{2+}+4H_2O$

Whereas five electrons are carried.

Regards!

3 0

3 years ago