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Dmitrij [34]
3 years ago
15

What is the answer helpnme plz

Chemistry
1 answer:
kykrilka [37]3 years ago
8 0
MgH2 + 2 H2O → Mg(OH)2 + 2 H2
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In the periodic table of elements, which of the following electron configurations would be the element following oxygen?
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The answer would be C, because it is the follower up of oxygen.

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When discussing acids and bases any substance that accepts a patron by definition is considered an
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Brønsted-Lowry acid.

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(07.06 mc)
Slav-nsk [51]

Distilled water and sealed container are in equilibrium when these objects do not exchange more heat.

<h3>What is thermal equilibrium?</h3>

The expression 'thermal equilibrium' makes references to the phenomenon by which two objects interact with each other to exchange heat energy.

Objects in contact can transfer heat to reach a thermal equilibrium state where the temperature is the same for both objects.

In conclusion, distilled water and sealed container are in equilibrium when these objects do not exchange more heat.

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2 years ago
The saltwater is a homogeneous or a heterogeneous mixture
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3 years ago
A substance has twice the number of particles as 12 grams of carbon-12. How many
klasskru [66]

Answer:

D)2.0

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Avogadro’s number represent the number of the constituent particles which are present in one mole of the substance. It is named after scientist Amedeo Avogadro and is denoted by N_0.

Also, it is the number of particles in exactly 12.000 g of isotope carbon 12.

Avogadro constant:-

N_a=6.023\times 10^{23}

Thus,

Number of particles as 12 grams of carbon-12 constitutes 1 mole

<u>Twice the number of particles as 12 grams of carbon-12 constitutes 1*2 mole</u>

Thus, moles in the substance = 2.0 moles

3 0
3 years ago
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