3 years ago

Flammable materials like alcohol should never be dispensed or used near True or False

1 answer:

7 0

near what like open flames? if so false unless it clarifies the solution requires alcohol then its a no go

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Elena-2011 [213]

Given :

A compound has a molar mass of 129 g/mol .

Empirical formula of compound is C₂H₅N .

To Find :

The molecular formula of the compound.

Solution :

Empirical mass of compound :

$M_e = ( 2 \times 12 ) + ( 5 \times 1 ) + ( 1 \times 14 )\\\\M_e = 43\ gram/mol$

Now, n-factor is :

$n = \dfrac{M}{M_e}\\\\n = \dfrac{129}{43}\\\\n = 3$

Multiplying each atom in the formula by 3 , we get :

Molecular Formula, C₆H₁₅N₃

3 0

3 years ago

Alekssandra [29.7K]

Its either A or C hope one of them helps

5 0

4 years ago

Vilka [71]

The period is the end of the sentence!!!

6 0

3 years ago

Tresset [83]

If you know the Table of elements you can see it on.

3 0

3 years ago

Dahasolnce [82]

The 3 indicates the third electron shell. (Which has only 1 electron in it in this configuration)

Hope this helps! :)

6 0

3 years ago