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Sergio [31]
3 years ago
8

Liquid water first appears after _______ minutes?

Chemistry
2 answers:
steposvetlana [31]3 years ago
6 0

The answer is B.) 3

Because Segment 2 shows the condensation of water from the gas phase to the liquid phase. <u>It is during this segment that liquid water first appears.</u> Therefore, after 3 minutes, liquid water first appears.

tino4ka555 [31]3 years ago
5 0

Answer: IT'S B

Explanation:

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How do you rewrite 4 5/7 as an improper fraction. in steps
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Multiply the denominator of the fraction by the whole number.

Add this result to the numerator of the fraction

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What are the charges and relative masses of the 3 main subatomic particles
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Proton: positive- mass equal to neutron
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The analysis of compound only magnesium, phosphorus and oxygen showed 36.23% MgO and 63.77 % P2O5. set up the simplest formula
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2 years ago
What's the empirical and molecular weight of C14H22N4O8? What's the molecular formula of C14H22N4O8?
Inessa05 [86]

374u

187u

C₁₄H₂₂N₄O₈

Explanation:

To find the molecular weight of the compound C₁₄H₂₂N₄O₈ we simply sum that atomic masses of the given elements in the compound.

 The empirical weight is determined by using the simplest ratio of the elements involved in the compound;

Molecular weight of C₁₄H₂₂N₄O₈;

atomic mass of C = 12g/mol

                           H = 1g/mol

                            N = 14g/mol

                            O = 16g/mol

 Molecular weight = 14(12) + 22(1) + 4(14) + 8(16)

                                = 168 + 22 + 56 + 128

                                 = 374u

Empirical weight:

  Empirical formula:

                        C₁₄    H₂₂      N₄     O₈

                         14  :    22 :    4  :     8

   divide by 2:

                          7   :    11    :    2  :    4

     empirical formula  C₇H₁₁N₂O₄

     empirical weight = \frac{molecular weight}{2} = \frac{374}{2} = 187u

The molecular formula is the actual combination of atoms in a compound. so the molecular formula of the compound is C₁₄H₂₂N₄O₈

learn more:

Molecular mass brainly.com/question/5546238

#learnwithBrainly

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3 years ago
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