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Sonbull [250]
3 years ago
7

How many days does it take the moon to orbit the Earth once.

Chemistry
2 answers:
Dmitrij [34]3 years ago
7 0

Answer:

Hope thia helps

Explanation:

it takes 27.3 days!!!

mixer [17]3 years ago
6 0

Answer:

27.3 days

Explanation:

I really have no explanation lol.

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Round the measurement to 3 significant figures. 13.06
erastovalidia [21]

Answer: 13.1

Explanation: just round the .06 to 1 creating three sig figs.

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Based on the data given, which factor had the greatest effect on the behavior of the gas
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Do you have the picture of the data?
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Gaseous methane reacts with gaseous oxygen gas to produce gaseous carbon dioxide and gaseous water . What is the theoretical yie
maks197457 [2]

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The theoretical yield of carbon dioxide formed from the reaction of methane and oxygen gas is 1 mol.

Explanation:

The equation below shows the reaction of combustion of methane:

CH₄(g) + 2O₂(g) → CO₂(g) + 2H₂O(g)

When no reactants are wasted and the reaction is complete, 1 mol of gaseous CO₂ will be produced. This means that the theoretical yield of carbon dioxide is 1 mol.

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Read 2 more answers
Identify the solute with the highest van't Hoff factor. And how do you determine which one is highest?
german

Answer : The correct option is, (A) AlCl_3

Explanation :

Van't Hoff factor : It is defined as the ratio of the experimental value of the colligative property to the calculated value of the colligative property.

We can determine the van't Hoff factor by the association and dissociation of the compound.

(A) AlCl_3

It is an electrolyte that dissociates to give aluminum ion and chloride ion.

The dissociation of AlCl_3 will be,

AlCl_3\rightarrow Al^{3+}+3Cl^{-}

So, Van't Hoff factor = Number of solute particles = Al^{3+}+3Cl^{-} = 1 + 3 = 4

(B) KI

It is an electrolyte that dissociates to give potassium ion and iodide ion.

The dissociation of KI will be,

KI\rightarrow K^{+}+I^{-}

So, Van't Hoff factor = Number of solute particles = K^{+}+I^{-} = 1 + 1 = 2

(C) CaCl_2

It is an electrolyte that dissociates to give calcium ion and chloride ion.

The dissociation of CaCl_2 will be,

CaCl_2\rightarrow Ca^{2+}+2Cl^{-}

So, Van't Hoff factor = Number of solute particles = Ca^{2+}+2Cl^{-} = 1 + 2 = 3

(D) MgSO_4

It is an electrolyte that dissociates to give magnesium ion and sulfate ion.

The dissociation of MgSO_4 will be,

MgSO_4\rightarrow Mg^{2+}+SO_4^{2-}

So, Van't Hoff factor = Number of solute particles = Mg^{2+}+SO_4^{2-} = 1 + 1 = 2

(E) Non-electrolyte

The dissociation non-electrolyte is not possible. So, the Van't Hoff factor will always be, 1.

Hence, the highest van't Hoff factor of solute is, AlCl_3

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