If you include structures in which sulfur has an expanded octet and exclude structures with triple bonds, how many resonance structures can be drawn for sulfur trioxide, SO3

Answer:

3.25 x 10²⁴ atoms of H

Explanation:

First you have to convert from grams to moles of C₂H₆O using the molar mass of C₂H₆O, which is 46.06 g/mol. Then convert from moles of C₂H₆O to moles of H using the ratio within the compound; for every molecule of C₂H₆O, there are 6 H atoms. Then lastly, because moles just represent a number in the same way a dozen does, we convert from moles of H to the number of atoms of H. 1 mole H = 6.022 x 10²³ atoms of H.

[tex]41.4g*\frac{1molC2H6O}{46.06C2H6O} * \frac{6 mol H}{1molC2H6O} * \frac{6.022 * 10^2^3atomsH}{1molH} = 3.2476 x 10^2^4atomsH[/tex]

Round to lowest number of significant figure which is three to get 3.25 x 10²⁴.

To see the number of atoms of an element in a given molecule we need to multiply stoichiometry to the number that is written on the foot of the element that is stoichiometry. The the total number of atoms of hydrogen atoms in 41.4 g of ethyl alcohol, C₂H₆0 is 5.35×10²³ atoms.

Atom is the smallest particle of any element, molecule or compound. Atom can not be further divided. Atoms contains nucleus in its center and electron that revolve around the atom in fixed orbit.

Number of atoms =number of moles×6.022×10²³ (Avogadro number)

number of moles= given mass÷ Molar mass

Given mass=41.4 g

Molar mass of C₂H₆0=46.07 g/mol

number of moles= 41.4 g ÷ 46.07 g/mol=0.89mol

Number of atoms =0.89mol×6.022×10²³ (Avogadro number)

                             =5.35×10²³ atoms

Therefore, the total number of atoms of hydrogen atoms in 41.4 g of

ethyl alcohol, C₂H₆0 is 5.35×10²³ atoms.

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Answer: conclusion

Explanation:

It say reviews your original question and your hypothesis

Answer:

conclusion!

Explanation:

Answer:

the formula

Explanation:

Answer:

Density of pineapple is 6 g/mL.

Explanation:

Given data:

Mass of pineapple = 30 g

Volume rises = 5 mL

Density of pineapple = ?

Solution:

Density:

Density is equal to the mass of substance divided by its volume.

The symbol used for density is called rho. It is represented by ρ. However letter D can also be used to represent the density.

Units:

SI unit of density is Kg/m3.

Other units are given below,

g/cm3, g/mL , kg/L

Formula:

D=m/v

D= density

m=mass

V=volume

The volume rises by drink is actually the volume of pineapple.

d = 30 g/ 5 mL

d = 6 g/mL

Density of pineapple is 6 g/mL.

Answer:

Geology

Explanation:

Geology is not a branch of biology.

Biology is the study of all forms of lives. Bio - life and logy - study

It consists of studies of plants, animals and micro-organisms. Some of its sub-branches are zoology, botany, genetics, micro-biology e.t.c.

Answer:

geology

Explanation: I took the test.

Answer:

Explanation: Geography · College. +5 pts ... Answer. 1.9/5. 16. Girly1004. Ambitious. 1 answer. 4 people helped ... are places that show evidence of a massive ice sheet that existed around 250 million years ago.

An atomic orbital is a mathematical feature describing the region and wave-like behavior of an electron in an atom. This characteristic can be used to calculate the opportunity of finding any electron of an atom in any precise location across the atom's nucleus.

An atomic orbital is regularly idea of as a location of space wherein there is an excessive opportunity of finding an electron. Every energy level corresponds to an orbital of a one-of-a-kind form, which describes wherein the electron is probable to be observed.

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Answer: No

Explanation: Some scientists have declared that mineral deposits containing important non renewable resources such as copper and zinc will be exhausted in a few decades if consumption does not decrease.

Answer:

Explanation:

The density of a substance can be found by using the formula

[tex]density = \frac{mass}{volume} \\[/tex]

From the question

mass = 10 g

volume = 2 mL

We have

[tex]density = \frac{10}{2} \\ [/tex]

We have the final answer as

Hope this helps you

Answer:

5.0 g/mL

Explanation:

Answer:

False.

This is false because, no chemical reaction could possibly happen.

But in case of sodium it is highly reactive with water.......... so there will be a chemical reaction.

but as sodium is not a insoluble molecular compound this is not applicable to the situation.

Answer:

YESBSJSKSSKEKEJRJRJER

Answer:

a model?

Explanation:

im not sure! i think so

Answer:

Yes, It is a model

Explanation:

A complex idea or a process can be demonstarated by using a Model because you can see things easier and its basically a copy of anything from forests to volcanoes but smaller to make it easier to see.

Hope This Helps

Answer:

The flask that produces the largest quantity of product is  the second flask

The molecules of H 2 O formed is  [tex]X =   8 \  molecules [/tex]

Explanation:

From the question we are told that

  The reaction is  

         2CH3OH(l) + 3O2(g)⟶4H2O(g)+2CO2(g)

 The first flask contains  3 molecules of C H 3 O H and 3 molecules of O 2

 The  second flask contains  1 molecule of C H 3 O H and 6 molecules of O 2

  The third flask contains  4 molecules of C H 3 O H and 2 molecule of O 2.

Looking at the three flasks we can see that base on molecular view the flask which produces the largest quantity of total product is second flask

 From the balanced equation we see that 2 moles of  C H 3 O H  are required to react with 3 moles of  oxygen hence O 2  is the limiting reactant

Generally 1 mole of any  substance is  [tex]1 *  N_A[/tex] of that substance

Here [tex]N_A[/tex]  is the Avogadro number with the value  [tex]N_A = 6.02214076 * 10^{23} \  molecules[/tex]

So  

Looking at the balanced equation we see that 3 moles of O 2 (3 *  [tex]N_A[/tex]  molecules of O 2 ) produces 4 moles of  H2O(4 *  

Then 6 molecules of O 2 will produce X molecules of  H 2 O

So  

     [tex]X = \frac{6 *  (4 *  N_A }{3 * N_A}[/tex]

=>   [tex]X =   8 \  molecules [/tex]

Answer:

The mass of the plastic bag, baking soda, and vinegar before the reaction was equal to the mass after the reaction.

Explanation:

The two main postulates that was given by Antoine Lavoisier are, oxygen play an important role in combustion and the other is mass of the reactant and product is conserved. Therefore, the reaction shows the law of conservation of mass.

According to Law of conservation of mass, mass can neither be created nor be destroyed. Mass can only be transformed from one form to another. The law of conservation of mass was given by Antoine Lavoisier.

Every reaction in nature follow the law given by Antoine Lavoisier that is mass is always conserved. The mass of the plastic bag, baking soda, and vinegar before the reaction was equal to the mass after the reaction.

Therefore, the reaction shows the law of conservation of mass.

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Answer:

See explanation

Explanation:

Carboxylic acids are all soluble in solutions of NaOH, Na2CO3 and NaHCO3 due to the formation of a sodium salt of the acid.

In all these cases, the sodium salt of cyclohexanecarboxylicacid formed is more soluble in water than the parent acid.

When the acid is dissolved in sodium bicarbonate or sodium carbonate, carbon dioxide gas is also evolved.

Answer:

Mass = 89.97 g

Explanation:

Given data:

Number of moles of chloride ions = 1.98 mol

Mass in grams of MgCl₂ present = ?

Solution:

we can see that 1 mole of MgCl₂ contain 2 moles of chloride ions. Thus 1.89 moles of chloride ions contain moles of MgCl₂ are,

                  Cl₂          :        MgCl₂

                   2            :          1

                  1.89        :        1/2×1.89 = 0.945

Thus, 1.89 moles of chloride ions are provided by 0.945 moles of MgCl₂.

Mass of MgCl₂:

Mass = number of moles × molar mass

Mass = 0.945 mol × 95.211 g/mol

Mass = 89.97 g

Answer:

A) They are all acidic.

Explanation:

All 3 of those have acidic qualities in the drink.

Answer:

They are all acidic

Explanat

Answer:

I think S.T.E.M but i'm not 100% sure

Explanation:

Answer:

Explanation:

Given 2H₃PO₄ + 3Ca ⇒ 3H₂ + Ca₃(PO₄)₂

          27.4g

       =(27.4g/98g/mol)

       = 0.280 mole H₃PO₄ used

Ca Used:

Rxn Ratio H₃PO₄ : Ca => 2:3

∴ moles Ca used = 3/2(0.280) mole Ca =0.420 mole Ca

grams Ca used = 0.420 mole Ca x 40 g/mole = 16.8 grams Ca used

Grams H₂ Produced:

Rxn Ratio H₃PO₄ : H₂ => 2:3 => moles H₂ produced = 3/2(0.28 mole H₂) = 0.420 mole H₂ = (0.420 mole H₂ x 2.02 g/mole) = 0.8484 grams H₂(g) Produced.

Moles Ca₃(PO₄)₂ Produced:

FWt Ca₃(PO₄)₂ = 310 g/mole

Rxn Ratio H₃PO₄ : Ca₃(PO₄)₂  => 2:1

∴moles Ca₃(PO₄)₂ Produced = 1/2(moles H₃PO₄ used)

= 1/2(0.28 mole) = 0.14 mole Ca₃(PO₄)₂  

If you want grams Ca₃(PO₄)₂, multiply moles Ca₃(PO₄)₂ by formula weight.

Answer:

Mass number or relative atomic mass number.