draw the two resonance lewis structures for TeO2

Answer:

the second energy level can hold a maximum of eight electrons

Answer:

The value of the equilibrium constant Kc is 5.45

Explanation:

The "Law of Mass Action" states:

"For a reversible reaction in chemical equilibrium at a given temperature, it is true that the product of the concentrations of the products raised to the stoichiometric coefficients divided by the product of the concentrations of the reactants raised to their stoichiometric coefficients is a constant."

This constant was called the equilibrium constant. For a reaction:

aA + bB ⇄ cC + dD

the equilibrium constant Kc is:

[tex]Kc=\frac{[C]^{c} *[D]^{d} }{[A]^{a} *[B]^{b} }[/tex]

In this case, the balanced reaction is:

2 H₂S → 2 H₂ + S₂

So, the equilibrium constant Kc is:

[tex]Kc=\frac{[H_{2} ]^{2} *[S_{2} ] }{[H_{2} S]^{2} }[/tex]

The equilibrium concentrations are

Replacing in the definition of equilibrium constant:

[tex]Kc=\frac{(0.88 M)^{2} *0.44 M }{(0.25 M)^{2} }[/tex]

Solving:

Kc= 5.45

The value of the equilibrium constant Kc is 5.45

Answer:

1.566x10²⁴ atoms of Cl

Explanation:

In Carbon tetrachloride, CCl₄, you have 4 moles of Cl per mole of CCl₄. To solve this question we must find the moles of CCl₄ in order to find the moles of Cl. Using Avogadro's number we can solve the chlorine atoms:

Moles CCl₄: 153.82g/mol

100g * (1mol / 153.82g) = 0.65 moles CCl₄

Moles Cl:

0.65 moles CCl₄ * (4 moles Cl / 1mol CCl₄) = 2.6 moles Cl

Atoms Cl:

2.6 moles Cl * (6.022x10²³ atoms / mol) =

Answer:

2.25 mol H₂

Explanation:

To calculate mol of H₂ ensure that the equation is balanced. Then use the equation and dimensional analysis to convert the given 1.5 mol Al to mol of H₂.

Answer:

Yes you are right.

Explanation:

Answer:

yeah it´s right

Explanation:

Answer:

Saturated alkyne

Explanation:

The hydrocarbons are known as the compounds which is made up of only carbon and hydrogen atoms. They may be saturated or unsaturated based on the number of bonds present. The molecule H-C≡C-H is an Unsaturated alkyne. The correct option is B.

The hydrocarbons in which the carbon and hydrogen atoms are connected through double or triple bonds are known as unsaturated hydrocarbons. Here ethyne is an unsaturated hydrocarbon.

Ethyne is an alkyne which have the C-C  and C-H atoms connected through triple and single bonds.

Thus ethyne is option B.

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Answer:

grass, grasshopper, frog, snake, hawk

Explanation:

Answer:

pH = 9.44, leche de magnesia

Explanation:

Número de iones [H⁺] de 3.6x10⁻¹⁰M

El pH es una medida en química utilizada para determinar si una sustancia es ácida o básica.

Si el pH < 7 La sustancia será ácida (Jugo de Naranja)

Si el pH > 10 La sustancia será básica (Leche de Magnesia)

Ahora, el pH es definido como el -log[H⁺], el pH de la solución será:

pH = -log[3.6x10⁻¹⁰M]

Como el pH > 7, probablemente se trate de leche de magnesia

Answer:

I think it mught be 12.9?

Answer:

the average sum of kinetic energy of all the molecules present in a body is called temperature. it's 12.9

hope it is helpful to you

Answer:

Your Mass never changes but your weight can..

Explanation: This all depends on gravity..

Answer:

In the mole ratio. If you have moles of one substance. And the coefficients from the balanced equation you can use the ratio to figure out the moles of the other compounds.

Answer:

metals, metalloids, nonmetals

Explanation:

a p e x, just took the quiz

The order is metals, metalloids, non metals in which elements are found as you move from left to right across a period.

When we move from left to right across a period Metals are located on the left hand side of the periodic table. Metals have high thermal conductivity.

When we move from left to right across a period Metalloids are located between metals and nonmetals. Metalloids are present p-block elements. Metalloids have good thermal conductivity.

When we move from left to right across a period Nonmetals are located on the right hand side of the periodic table. Non metals have low melting point and boiling point.  Non metals have low thermal conductivity.

Thus, from conclusion we can say that the order is metals, metalloids, non metals in which elements are found as you move from left to right across a period.

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Answer:

Animal cells are more round and do not have a rigid cell wall.

Explanation:

Answer:

https://download.cnet.com/1-Click-Answers/3000-2378_4-10060189.html

Explanation:

Answer: 1. 20.0 grams

2. 0.272 moles

3. B) Mass --> Moles --> Volume

Explanation:

According to avogadro's law, 1 mole of every substance weighs equal to molecular mass and contains avogadro's number [tex]6.023\times 10^{23}[/tex] of particles.

To calculate the number of moles, we use the equation:

[tex]\text{Number of moles}=\frac{\text{Given molecules}}{\text{Avogadros number}}[/tex] or

[tex]\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}[/tex] or  

Putting in the values we get:

1. [tex]\text{Number of moles of} Cl_2=\frac{1.7\times 10^{23}}{6.023\times 10^{23}}=0.282moles[/tex]

Mass of [tex]Cl_2=moles\times {\text {Molar mass}}=0.282mol\times 71g/mol=20.0g[/tex]

2. [tex]\text{Number of moles of NaCl}=\frac{3.28\times 10^{23}}{2\times 6.023\times 10^{23}}=0.272moles[/tex]

3. [tex]\text{Number of moles of water}=\frac{26g}{18g/mol}=1.44moles[/tex]

Volume of water =[tex]moles\times {\text {Molar volume}}=1.44mol\times 22.4L/mol=32.4L[/tex]

Answer:

0.39017 moles

Explanation:

a mole is 6.023×10^23

(2.35×10^23)÷(6.023×10^23)=0.39017

Answer:

There are 10,000 grams of octane in the tank of the sports car when it is full

Explanation:

To solve this problem, we simply need to convert the mass of octane- 93  from kilograms to grams, using the standard conversion factor which is given below.

it will take 10kg of octane-93 to  fill up the tank

1 kg = 1000grammes

therefore 10 kg = 10 X 1000 = 10,000 grams.

Hence, there are 10,000 grams of octane in the tank of the sports car when it is full.

Answer:

-OOH

Explanation:

This forms an acid if it comes in contact with a metal

Answer:

HO2; Hydroperoxyl

Explanation:

Since there are two oxygen molecules, and one hydrogen molecule, it can be classified as a hydroperoxyl molecule.

It is an inorganic compound with the following characteristics

Answer:

17.03052 mutiple by 2

34.06104grams

Answer:

The Raschig process, the original commercial production process for hydrazine, involves oxidation of ammonia to chloramine with sodium hypochlorite, then further reaction of the chloramine with excess ammonia and sodium hydroxide to produce an aqueous solution of hydrazine with sodium chloride as a by-product.

Answer: The Rasching process is  a chemical process for the producing phenol

Explanation:

Answer:

5 mol H₂. this is the answer bro all the best for your test/exam

Answer:

Atoms form chemical bonds to make their outer electron shells more stable. An ionic bond, where one atom essentially donates an electron to another, forms when one atom becomes stable by losing its outer electrons and the other atoms become stable (usually by filling its valence shell) by gaining the electrons.