Which functional group will attach to a hydrocarbon chain to form alcohol?.

Answer:

frequency =7.32 x 1019 hertz

To find the frequency  you must time speed of light (3 x 10^8) times wavelength

Halogens form ionic bonds with metals.

halogens + iron —> iron (III) Halide

Formal charge is calculated by assuming equal sharing of bonding electrons, while oxidation numbers are assigned by assuming that the most electronegative atom takes all the bonding electrons.

The difference between formal charge and oxidation numbers is as follows:

Formal charge is the charge assigned to an atom in a molecule, assuming that electrons in all chemical bonds are shared equally between atoms, regardless of their electronegativity. To calculate the formal charge of an atom, use the formula:

Formal Charge = (Valence Electrons) - (Non-bonding Electrons) - 1/2(Bonding Electrons)

Oxidation number, on the other hand, is a hypothetical charge assigned to an atom in a compound, assuming that the most electronegative atom in a bond takes all the bonding electrons. It is used to describe the degree of oxidation (loss of electrons) of an atom in a chemical compound.

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The solution formed by each salt can be acidic, basic, or neutral depending on the behavior of the salt in water. In this case, the base \(NH_3\) is stronger than the acid HF, and thus, the solution formed by the salt \(K(NH_3)\) will be basic. The solution formed by the salt HF will be acidic.

\(K(NH_3)\) : This salt is formed by the reaction between KOH (a strong base) and  \(NH_3\) (a weak base). Since KOH is a strong base, it will completely dissociate into K and  \(OH^{-}\) ions in water.  \(NH_3\) , on the other hand, is a weak base and will partially dissociate into \(NH_4^{+}\) and \(OH^{-}\) ions. The resulting solution will be basic due to the excess of   \(OH^{-}\) ions present.

HF: This salt is formed by the reaction between NaOH (a strong base) and HF (a weak acid). NaOH will completely dissociate into \(OH^{-}\) ions in water. HF, being a weak acid, will partially dissociate into H and F ions. The resulting solution will be acidic due to the excess of H ions present.

To determine whether the resulting solution is acidic or basic, we need to compare the strengths of the acid and the base formed by the salt hydrolysis. If the acid is stronger than the base, the resulting solution will be acidic. If the base is stronger than the acid, the resulting solution will be basic. If the acid and base are of equal strength, the resulting solution will be neutral.

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Answer:

Covalent bonds are formed by the sharing of electrons between two non-metallic atoms. These bonds are typically stronger and more stable than ionic bonds and are found in compounds such as water, hydrogen, and carbon dioxide. Covalent bonds differ from ionic bonds in that they do not involve the transfer of electrons from one atom to another.

Explanation:

Answer:

Mass of Cl = 35.5

Mass of Cl2 => 35.5×2

=> 71 g/mol

hope that helps ✌

71

The atomic mass of chlorine is equal to the molar mass of chlorine so the molar mass of chlorine is 35.5

=> molar mass for Cl^2: 35,5*2=71

The question is about finding the concentration of a substance after seven half-lives if it has a concentration of 5.80 M at the beginning of the reaction. substance will be 0.0906 M after seven half-lives.

The half-life of a substance is the time it takes for half of it to decay. After five half-lives, the concentration becomes 0.181 M. After six half-lives, the concentration becomes 0.0905 M. After seven half-lives, the concentration becomes 0.0453 M. Therefore, the concentration of the substance will be 0.0906 M after seven half-lives.The formula to find the concentration after a certain number of half-lives is given as:Final concentration = Initial concentration x (1/2)number of half-livesGiven,Initial concentration = 5.80 MNumber of half-lives = 7The formula to find the final concentration becomes:Final concentration

= 5.80 M x (1/2)7

= 5.80 M x 0.0078125

= 0.0453 M (rounded to four significant figures)

The concentration of the substance after one half-life is 2.90 M.

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Answer and Explanation:

When methane (CH4) and chlorine (Cl2) react, a substitution reaction takes place. Specifically, the reaction is a halogenation reaction, in which one or more hydrogen atoms in the methane molecule are replaced by chlorine atoms. The reaction can be represented by the following equation:

CH4 + Cl2 → CH3Cl + HCl

In this equation, CH3Cl represents chloromethane, which is a type of organochlorine compound. The reaction is typically initiated by ultraviolet (UV) light or heat, and it proceeds through a series of free radical chain reactions. The products of the reaction are typically a mixture of chloromethane and hydrogen chloride (HCl) gas.

Answer:

Oxidation  half  reaction  is  written   as    follows when  using  using  reduction potential  chart

example  when  using  copper  it is  written  as  follows

CU2+   +2e-  --> c(s)  +0.34v

oxidasation  is the  loos  of  electron  hence copper oxidation  potential  is  as  follows

cu (s)  -->  CU2+   +2e    -0.34v

Explanation:

Answer:

The potential difference is caused by the ability of electrons to flow from one half cell to the other. Electrons are able to move between electrodes because the chemical reaction is a redox reaction. ... The cell potential (Ecell) is measured in voltage (V), which allows us to give a certain value to the cell potential.

Explanation:

The intermediate is stabilised by fluorene electronegativity, which removes the electrons from the meisenheiner complex's negative charge, allowing the process to proceed more quickly.

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Simple cubic structure there is only one lattice point at each corner of the cube-shaped unit cell. Here, particles are present at the corners of the cube and not on the body center or face center.

Alpha polonium is a high radioactive heavy metal.

How to calculate density in simple cubic cell?

We will use the equation,

ρ=Z×Ma/a³×Na

where,

Z = number of atoms in a unit cell (Z = 1 for a simple cubic unit cell)

a = edge length= 336 pm

Na=6.022×1023particles/mol

Ma = 209

ρ=Z×Ma/a³×Na

= 1× 209 / (336) ³× 6.023

= 3.31 ^-5

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Answer:

large, released

Explanation:

As we know, fireworks contain l o t s of energy, even before the burst of colors release. So i think choice 3 is the answer.

i hope this helps :)

Answer:

C

Explanation:

Brainliest

I tried my best

Answer:

Covalent

Explanation:

C. Covalent

The type of bonding which  can be described as a "cooperation" is covalent bonding as there is sharing of electrons.

Covalent bonding is defined as a type of bonding which is formed by the mutual sharing of electrons to form electron pairs between the two atoms.These electron pairs are called as bonding pairs or shared pair of electrons.

Due to the sharing of valence electrons , the atoms are able to achieve a stable electronic configuration . Covalent bonding involves many types of interactions like σ bonding,π bonding ,metal-to-metal bonding ,etc.

Sigma bonds are the strongest covalent bonds while the pi bonds are weaker covalent bonds .Covalent bonds are affected by electronegativities of the atoms present in the molecules.Compounds having covalent bonds have lower melting points as compared to those with ionic bonds.

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This one is from G_oogle

The Milkmaid and Her Pail

A farmer's daughter had been out to milk the cows, and was returning to the dairy carrying her pail of milk upon her head. As she walked along, she fell a-musing after this fashion: "The milk in this pail will provide me with cream, which I will make into butter and take to market to sell. With the money I will buy a number of eggs, and these, when hatched, will produce chickens, and by and by I shall have quite a large poultry-yard. Then I shall sell some of my fowls, and with the money which they will bring in I will buy myself a new gown, which I shall wear when I go to the fair; and all the young fellows will admire it, and come and make love to me, but I shall toss my head and have nothing to say to them." Forgetting all about the pail, and suiting the action to the word, she tossed her head. Down went the pail, all the milk was spilled, and all her fine castles in the air vanished in a moment!

- Do not count your chickens before they are hatched.

I tried to make my own but it turned out bad...

Hope this helps ❤️

Answer:

the empirical formula is Fe3O4.

Explanation:

1. Assume you have 100 grams of this stuff.

You then have:

72.4 g of Fe

27.6 g of O

2. Convert each to moles.

72.4 g of Fe/55.85 = 1.296 mol Fe

27.6 g of O/16 = 1.725 mol O

3. Divide by the least moles number.

1.296 mol Fe/1.296=1

1.725 mol O/1.296=1.33

4. Write out the formula.

FeO1.33

The 1.33 = 4/3

✨So, just multiply by the lowest common number to get the 4/3 to be a whole number,

which happens to be a 3, so

the empirical formula is Fe3O4.

Answer:

B is correct.

Explanation:

A vaccination will trigger the organism to prepare antibodies as a measure of protection against a sickness.

Answer: 69.25 AMU

Explanation:

1. find missing %

knowing the first % abundance is 55 you are left with 45%

2. set up an equation

(55% * 67) + (45% * 72) = x

3. solve

(55% * 67) + (45% * 72) =x | break down to solve each part

55% * 67 =36.85 | can be done many ways ex: (55 * 67)/100 or .55 * 67

45% * 72= 32.4| can be done as previously expressed

36.85+32.4=69.25 AMU

Answer:

Explanation:

V1= 600.0 mL

T1= 293 K

V2 unknown

T2= 333K

Charles law V1*T2=V2*T1

where V1 and T1 are the initial volume and temperature. V2 and T2 are the final temperature and volume.

V2=(V1*T2)/T1 = ( 600.0*333)/293= 682 mL (with significant figures)(681.911 mL before signifcant figures.)

Bohr's model lacked orbitals again for electrons or the electron cloud, contrary to Dalton's theory, which was founded on the idea that every element is made up of its own distinct variety of an indivisible atom.

According to the theory, an atom contains a small, dense, positive charge centre known as the nucleus, where practically every bit of mass was concentrated. Light, particles with negative charges called electrons then orbit far from the nucleus in a manner similar to how planets circle the Sun.

Dalton proposed his atomic hypothesis based on all of his observations. It's frequently called the billiards ball model. Due to the lack of understanding of the atomic electrons and the nucleus at the time, he described an atom as a ball-like structure.

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Answer:

B.)Schrodinger's model

Explanation:

First of all, Z is unknown. I hope it is a mistake.

        Now, it is given that the element X has nineteen electrons. This proves that X is actually Potassium.

        As per the periodic table, both Potassium and Lithium belongs to group 1 as their valency is 1 because of the presence of only one electron in the outermost shell of electrons i.e., they lose an electron during a chemical reaction to form a stable compound. Furthermore, both are metallic.

        Magnesium belongs to group 2 and hence its valency is two, which is different from potassium though it is metallic. Similiarly, bromine belongs to group 17 and gains one electron during a reaction in contrast to potassium.

( No internal links available for reference. For clarification, check the periodic table).

There is 21.77 g of excess SO₂ left over after the reaction is complete.

Reagents are substances used in laboratory tests and can be used in a chemical process to find, quantify, or create other substances.

2SO₂ + O₂ → 2SO₃

Molar mass of SO₂ = 32.06 g/mol

Molar mass of O₂ = 31.9988 g/mol

Number of moles of SO₂ = 21.71 g / 32.06 g/mol = 0.677 mol

Number of moles of O₂ = 21.71 g / 31.9988 g/mol = 0.678 mol

2 moles of SO₂ : 1 mole of O₂

0.678 mol O₂ × (2 mol SO₂ / 1 mol O₂) = 1.356 mol SO₂

Therefore, 1.356 mol of SO₂ are required to react completely with 0.678 mol of  O₂. However, we only have 0.677 mol of SO₂, so there is an excess of:

Excess SO₂ = 1.356 mol – 0.677 mol = 0.679 mol

Molar mass of SO₂ = 32.06 g/mol

Excess SO₂ = 0.679 mol × 32.06 g/mol = 21.77 g

Therefore, there is 21.77 g of excess SO₂ left over after the reaction is complete.

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Answer:

2Al + 6HCl —> 3H₂ + 2AlCl₃

Explanation:

From the question given above:

Al + HCl —> H₂ + AlCl₃

The above equation can be balance as illustrated below:

Al + HCl —> H₂ + AlCl₃

We have 1 atom of Cl on the left side and 3 atoms on the right side. It can be balance by putting 6 in front of HCl and 2 in front of AlCl₃ as shown below:

Al + 6HCl —> H₂ + 2AlCl₃

We have 6 atoms of H on the left side and 2 atoms on the right side. It can be balance by 3 in front of H₂ as shown below:

Al + 6HCl —> 3H₂ + 2AlCl₃

We have 1 atom of Al on the left side and 2 atoms on the right side. It can be balance by putting 2 in front of Al as shown below:

2Al + 6HCl —> 3H₂ + 2AlCl₃

Thus, the equation is balanced.

Answer:

halogens group 7A on the periodic

table

Column height is 20cm, and HETP is 10cm.

So this column will behave as 20/10=2 ideal trays.

Hence the distillate composition will be 45%benzene.

Chem 233                                                                                                           Islam AboalnadieSeparation of Liquids by Fractional Distillation and Analysis by Gas ChromatographyBackground and Methods: The purpose of this lab was to use the techniques of fractional distillation to separate a 1:1 mixture of Ethyl acetate and Butyl acetate then use gas chromatography to analyze the amount of each compound in each of three fractions obtained through the distillation. Fractional distillation will then be compared to simple distillation.

The first fraction was taken when the distillation apparatus was near the boiling point of Ethyl acetate (77.1ºC) (1). The second was taken when the distillation apparatus was in the process of increasing temperature from the boiling point of Ethyl acetate to the boiling point of Butyl acetate (126.1ºC) (1).  The third and final fraction was taken around the boiling point of Butyl acetate until the distillation process was complete.

Please check the attached diagram for a more detailed answer.

10%benzene solution be separated as 2 timelines in txy diagram.

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An alternating copolymer is known to have a number-average molecular weight of 250,000 g/mol and a degree of polymerization of 3420. if one of the repeat units is styrene, which of ethylene, propylene, tetrafluoroethylene, and vinyl chloride is the other repeat unit? why?'

Propylene (C3H6) is a colorless gasoline gas with a naturally stinky odor. even though just like propane, it has a double bond which gives it a combustion gain i.e. it burns warmer. This fuel gasoline is extremely flammable and non-poisonous. Propylene is obtained throughout the refining of gas.

Gasoline is a aggregate of many different hydrogen- and carbon- containing chemicals (hydrocarbons). a typical fuel mixture includes about one hundred fifty exclusive hydrocarbons, including butane, pentane, isopentane and the BTEX compounds (benzene, ethylbenzene, toluene, and xylenes)

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The alcohol is used in the thermometers instead of the water because The freezing point of the alcohol is less than -100°C.

Thermometer is the instrument that is used to measure the temperature of the substance which will be present in the liquid state. The freezing point of the alcohol is less than the  - 100 °C, and  we can measure the very low temperature by using an alcohol thermometer.

The expansion of the alcohol is more than as compare to that of the mercury for the same rise or the fall of the temperature, therefore, the  alcohol used in the thermometer can measure the temperature very more accurately.

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Answer:

2.38 g of oxygen (O2).

Explanation:

What is given?

Mass of potassium chlorate (KClO3) = 6.06 g.

Molar mass of KClO3 = 122.4 g/mol.

Molar mass of oxygen (O2) = 32 g/mol.

Step-by-step solution:

First, let's state the balanced chemical equation. Remember that the decomposition of a compound produces two or more products:

Now, let's convert 6.06 g of KClO3 to moles using its molar mass:

You can see in the chemical equation that 2 moles of KClO3 produce 3 moles of O2. By doing a rule of three with this data, we obtain that:

The final step is to convert from 0.0743 moles of O2 to grams using its molar mass, like this:

The answer is that we will produce 2.38 g of oxygen (O2) from the decomposition of 6.06 g of potassium chlorate (KClO3).