Homolysis, or homolytic bond dissociation, produces a very specific type of product under certain reaction conditions. In Part 1, select all the products (in formulae and general chemical terms) that could result from homolysis. In Part 2, select the reaction conditions that are most likely to promote homolysis.
Part 1. Choose all that may occur as possible products of a homolysis reaction.
Choose one or more:_______.
a. hydride ion
b. R3CO
c. Br2
d. H
e. a carbocation
f. H3C
g. H3CO-
h. hydrogen ion
i. a carbon free radical
Part 2. Choose the conditions under which homolysis is likely to occur.
Choose one or more:_______.
a. strong base
b. ultraviolet irradiation
c. high temperature
d. strong acid
e. infrared irradiation
f. low temperature

x in  Na₂CO₃.xH₂0  is the number of water molecule that is attached to sodium carbonate called water of crystallization. Therefore the value of x is 10

Titration is a technique by which we know the concentration of unknown solution using titration of this solution with solution whose concentration is known. To know the end point we use phenolphthalein as indicator. End point is a point where completion of reaction happen

The balanced equation is

Na₂CO₃ + H₂SO₄ → Na₂SO₄ + H₂O + CO₂

Concentration of H₂SO₄= 0.05 mol/L

Volume of H₂SO₄ = 20 ml = 0.02 L

number of moles of H₂SO₄= 0.05× 0.02 = 0.001mol

number of moles of H₂SO₄ = n(Na2CO3) = 0.001 mol

Molar mass of Na₂CO₃= 106 g/mol

mass of Na₂CO₃ = n× M = 0.001 × 106 = 0.106g

change in mass =∆m = 0.276 – 0.106 = 0.17 g

Molar mass of (H₂O = 18 g/mol

n umber of moles of water = mass÷ Molar mass=0.17 g÷18=0.0094mol

x= number of moles of H₂O÷ number of moles of sodium carbonate

 = 0.0094mol÷0.001

  =10

Therefore the value of x is 10

To know more about titration, here:

https://brainly.com/question/13307013

#SPJ5

Answer:

that the poem needs to be finished heh pog

Explanation:

Answer:

Where is the poem?

Explanation:

Answer:

When conducting a chemistry lab experiment using chalk (calcium carbonate) in vinegar (acetic acid), there are several limitations and precautions to be aware of:

Limitations of chalk in vinegar chemistry experiment:

Reaction rate: The reaction between chalk and vinegar is relatively slow, which may require a longer observation period or higher concentration of vinegar to observe significant changes within a reasonable time frame.

Solubility: Chalk may not dissolve completely in vinegar, resulting in incomplete reaction or difficulty in obtaining accurate results.

Product formation: The reaction between chalk and vinegar produces carbon dioxide gas, water, and calcium acetate. The carbon dioxide gas may escape into the atmosphere, leading to loss of product and inaccurate measurements.

pH: Chalk is a basic substance, and the reaction with vinegar, which is acidic, may result in neutralization, leading to a decrease in the overall acidity of the reaction mixture.

Precautions to take in chalk in vinegar chemistry experiment:

Ventilation: The reaction between chalk and vinegar produces carbon dioxide gas, which can displace air and potentially cause asphyxiation in a closed or poorly ventilated area. Conduct the experiment in a well-ventilated area or under a fume hood to ensure adequate air circulation.

Eye and skin protection: Vinegar is an acid and can cause skin and eye irritation. Wear appropriate personal protective equipment (PPE), such as gloves and goggles, to protect yourself from contact with vinegar or any other chemicals used in the experiment.

Chemical handling: Handle the chemicals, including chalk and vinegar, with care, following proper lab safety protocols. Avoid ingestion, inhalation, or direct contact with the chemicals, and dispose of them properly according to local regulations.

Accuracy in measurements: Use calibrated and accurate measuring tools, such as graduated cylinders or burettes, to measure the amount of chalk, vinegar, and other reagents accurately. This will ensure the reliability and accuracy of the experimental results.

Observations: Make careful and detailed observations during the experiment, noting any changes in appearance, gas evolution, or other relevant observations. Take measurements at appropriate intervals and record the data accurately for analysis and interpretation.

It is important to follow good laboratory practices, including proper chemical handling, accurate measurements, and cautious observations, to ensure safe and reliable results in a chalk in vinegar chemistry lab experiment. Consult with a qualified instructor or supervisor for specific guidelines and precautions related to your experiment.

Approximately 4.37 x 10^23 molecules of HCl would be required to form 34.52 g of MgCl₂.

To determine the number of molecules of HCl required to form 34.52 g of MgCl₂, we need to use the molar mass and stoichiometry of the balanced equation:

Mg(OH)₂(s) + 2 HCl(aq) → 2 H₂O(l) + MgCl₂(aq)

The molar mass of MgCl₂ is 95.21 g/mol.

First, we need to calculate the number of moles of MgCl₂ formed:

Moles of MgCl₂ = mass of MgCl₂ / molar mass of MgCl₂

Moles of MgCl₂ = 34.52 g / 95.21 g/mol

Moles of MgCl₂ = 0.363 mol

According to the balanced equation, the stoichiometric ratio between HCl and MgCl₂ is 2:1. Therefore, the moles of HCl required can be calculated as follows:

Moles of HCl = 2 * Moles of MgCl₂

Moles of HCl = 2 * 0.363 mol

Moles of HCl = 0.726 mol

To calculate the number of molecules, we need to use Avogadro's number, which is approximately 6.022 x 10^23 molecules/mol.

Number of molecules of HCl = Moles of HCl * Avogadro's number

Number of molecules of HCl = 0.726 mol * 6.022 x 10^23 molecules/mol

Number of molecules of HCl = 4.37 x 10^23 molecules

Therefore, approximately 4.37 x 10^23 molecules of HCl would be required to form 34.52 g of MgCl₂.

For more such questions on molecules

https://brainly.com/question/1351818

#SPJ8

The reaction can be said to be at equilibrium when the reaction rates of making products and using reactants are equal.

When the rates of the forward and reverse reactions are equal and the concentrations of the reactants and products don't change over time, a chemical reaction is said to be in equilibrium.

When the system reaches equilibrium, it is in a state of balance, which means that the concentrations of the reactants and products have not changed significantly.

Learn more about reaction equilibrium:https://brainly.com/question/9024475

#SPJ1

Answer:

a chromosome contains many genes

Explanation:

Answer:

How the chemical reacts

Explanation:

Answer:

molecules can be much bigger. one molecule of vitamin c is made up of 20 atoms (6 carbons, 8 hydrogens, and 6 oxygens

Answer:

\($1.20 \times 10^{9}$\) years

Explanation:

For a first order reaction constant is given as :

\($k=\frac{0.693}{t}$\)

where t = 4.5 billion years

             =  \($4.5 \times 10^9$\) years

Therefore,

\($k=\frac{0.693}{4.5 \times 10^9}$\)

   = \($0.154 \times 10^{-9} \text{ year}^{-1}$\)

Now, \($\ln \frac{C}{C_0} = -kt$\)

where, C = concentration at present time

            \($C_0$\) = initial amount

Here, \($\frac{C}{C_0} = 0.839$\)

Therefore,

\($\ln (0.839) = -0.154 \times 10^{-9} \times t$\)

\($-0.185 = -0.154 \times 10^{-9} \times t$\)

\($t=\frac{-0.185}{-0.154 \times 10^{-9}}$\)

  \($=1.20 \times 10^{9}$\) years

Thus, the age of the rock is \($1.20 \times 10^{9}$\) years.

The radioactive substance decay by the loss of energy of the nucleus by radiation. The rock estimated by uranium-238 content is 1.20 billion years old.

The rate of the reaction is dependent linearly on a single reactant in a first-order reaction.

The first order constant is given as,

\(\rm k = \dfrac{0.693 }{t}\)

Here, t = \(4.5 \times 10^{9}\)

Substituting the value of t in the above equation:

\(\begin{aligned}\rm k &= \dfrac{0.693}{4.5 \times 10^{9}}\\\\&= 0.154 \times 10^{-9}\;\rm year^{-1}\end{aligned}\)

Now, age by concentration is calculated as:

\(\rm ln^{\frac{C}{C_{O}} }\; = -\rm kt\)

Here, the ratio of the present and the initial concentration is 0.839.

Substituting values in the above equation:

\(\rm ln(0.839) &= - 0.154 \times 10^{-9} \times t\\\\\\\rm t &= \dfrac{-0.185}{- 0.154 \times 10^{-9}}\\\\\\&= 1.2 \times 10^{9}\;\rm years\end{aligned}\)

Therefore, the rock is 1.20 billion years old.

Learn more about the rock age here:

https://brainly.com/question/5058707

1. Examples of solids, liquids, and gases found in a home

Solids: books, furniture, toys

Liquids: water, juice, shampoo

Gases: air, natural gas, propane

2. The human body contains solids, liquids, and gases. Solids include bones, muscles, and organs. Liquids include blood, saliva, and urine. Gases include air in the lungs and dissolved gases in the bloodstream. The body is mostly made up of liquids, as they make up a large percentage of its overall volume.

3. If you needed to remove the water from a sample of blood to study the solids that remained, you could use a process such as evaporation or freeze-drying. Evaporation involves heating the sample to allow the water to evaporate, leaving behind the solids. Freeze-drying involves freezing the sample and then removing the water under vacuum, leaving behind a dry solid.

4. Some metals that could be found within the human body include iron, zinc, and copper. These metals are commonly found in foods such as meat, seafood, nuts, and whole grains. Other metals such as calcium, magnesium, and potassium are also important for the body and are found in a variety of foods.

To know more about solids here

https://brainly.com/question/21500863

#SPJ1

The mass of 7.8 x 10^22 carbon atoms is 1.553 grams.

To determine the mass of 7.8 x 10^22 carbon atoms, we need to use the concept of molar mass and Avogadro's number.

The molar mass of carbon (C) is approximately 12.01 g/mol, which represents the mass of one mole of carbon atoms. Avogadro's number states that there are 6.022 x 10^23 atoms in one mole of any substance.

Now, let's calculate the mass of 7.8 x 10^22 carbon atoms:

Determine the number of moles:

Number of moles = Number of atoms / Avogadro's number

Number of moles = (7.8 x 10^22) / (6.022 x 10^23) = 0.1295 moles

Calculate the mass:

Mass = Number of moles x Molar mass

Mass = 0.1295 moles x 12.01 g/mol = 1.553 g

Therefore, the mass of 7.8 x 10^22 carbon atoms is approximately 1.553 grams.

The calculation is based on the understanding that the molar mass of carbon represents the mass of one mole of carbon atoms. By dividing the given number of atoms by Avogadro's number, we obtain the number of moles. Multiplying the number of moles by the molar mass gives us the mass in grams.

Know more about Avogadro's number here:

https://brainly.com/question/1513182

#SPJ11

The number of grams of sulfuric acid in 1 gallon of battery acid if the solution has a density of 1.31 g/mL and is 38.5 % sulfuric acid by mass is 1854.62 g

To learn more about density visit:

https://brainly.com/question/15164682

#SPJ1

Answer:

How much heat will be released when. 8.21 g of sulfur reacts with excess O1 according to the following equation? 25 +302 → 2SO3. AH° = -791.4 kJ.

Explanation:

I HOPE THIS HELPED IF NOT THEN LET ME KNOW

76.0 kJ, According to the provided reaction and stoichiometry, 76.0 kJ of heat will be emitted when 8.21 g of sulphur interacts with too much oxygen to create sulphur dioxide.

We must first determine how many moles of sulphur are present:

S mass divided by S's molar mass equals moles of S.

8.21 g/32.06 g/mol = 0.256 mol are the moles of sulphur.

We may infer that all of the sulphur will react because there is an excess of oxygen, hence the reaction will result in:

1 mol SO2 divided by 0.256 mol S results in 0.256 mol SO2.

q = nΔH

where n is the number of moles of the product (SO2), q is the quantity of heat released, and H is the reaction's enthalpy change.

q = (0.128 mol)(-296.8 kJ/mol) = -76.0 kJ

Answer: The vertical columns on the periodic table are called groups or families because of their similar chemical behavior. All the members of a family of elements have the same number of valence electrons and similar chemical properties. The horizontal rows on the periodic table are called periods

Answer:

1.674 x 10^-23 grams

Explanation:

Hydrogen-1 is called Protium

wikipedia

atomic mass of Protium is 1.00794 amu

sciencedirectcom

atomic mass of 10 Protiums is 10.0794 amu

10.0794 amu in grams is

1.6737236x10^-23 grams

Answer:

Ok

The Limiting reagent is Aluminum. Its not in excess. So the reaction ends once its exhausted. So all Aluminum will be used up

From the question ....

157g of Al

Find the number if reacting Moles...

M=mass/molar mass

M= 157/27

=5.81moles of Aluminum is reacting.

Now looking at the equation of reaction(Always make sure its balanced)...

2moles of Al react to produce 2 Moles of AlCl3

Their Mole ratio is equal

Since their Mole ratio is equal 2:2.... That means... That 5.81moles of AlCl3 would be produced because the mole of Al is 5.81

So We now know the Moles of AlCL3 produced

getting the Mass won't be difficult.

Again

Mole=Mass/Mm

Mass = Mole x Mm(Molar Mass)

Mass of AlCl3 = 5.81 x (27 + 35.5x3)

Note: The arithmetic done in the parenthesis is the molar mass of AlCl3

Mass of AlCl3 = 5.81 x 133.5

=775.63g of AlCl3.

Have a great Day!!!!

Answer:

1) magnesium chloride

2) b) The copper is getting oxidized from Cu+ to Cu2+ and turns blue.

Explanation:

The work published by David N. Frick, Sukalyani Banik, and Ryan S. Rypma in J Mol Biol. 2007 Jan 26; 365(4): 1017–1032 clearly shows that divalent metal ions of group 2 such as Mg^2+ play an important role in ATP hydrolysis. Addition of EDTA decreased the rate of hydrolysis of ATP (due to sequestration of the divalent ion of group 2) indicating an active participation of divalent ions in the process.

2) The copper I ion is colourless because it is a d^10 specie. However, when it is oxidized to Cu^2+, a blue colour appears in the solution.

The quantity of electrical energy released is a function of the quantity of energy coming from the energy source (low vs. high). The system will release (A) more (B) less energy depending on how much energy is introduced into it.

The rotor shaft of a generator is spun or rotated by the fluid's force on the blades. The generator then transforms the kinetic (mechanical) energy of the rotor into electrical energy.

Turbines come in a variety of forms, including steam, combustion (gas), hydroelectric, and wind turbines.

At the scale that a large utility would use them, solar and wind power are currently the least expensive sources of energy. They are much less expensive than coal and nuclear power plants and slightly less expensive than natural gas-fired power plants.

Therefore, Depending on how much energy is supplied into the system, it will either (A) release more (B) or less (C).

Learn more about electrical energy here:

https://brainly.com/question/16182853

#SPJ1

Answer:

a. The Zn and HCl both retained their identity.

Clofibrate is a lipid-lowering pharmaceutical that has been utilized to treat hyperlipidemia. Its metabolism system includes different pathways such as hydrolysis, oxidation, conjugation, and others.

Metabolites are little molecules that are produced during the process of  metabolism in living living beings.

Clofibrate hydrolysis metabolite:

Clofibrate oxidation metabolites:

Clofibrate alkylation metabolites:

Clofibrate conjugation metabolites:

Conclusively, the relative abundance and significance of each metabolite can vary among individuals.

Learn more about metabolites

https://brainly.com/question/14422941

#SPJ1

Answer:

124.1 g/mol

Explanation:

just facts

Answer:

124.1 g/mol

Explanation:

To calculate formula mass, multiply the subscript of each element in the formula by the element's atomic weight (relative atomic mass) found on the periodic table. The unit for formula mass is either u or Da (Daltons).

From the solution that we have in the question;

The equilibrium constant, denoted as K, is a value that quantitatively represents the ratio of the concentrations of products to reactants at equilibrium in a chemical reaction.

It is a fundamental concept in chemical equilibrium.

The value of the equilibrium constant provides valuable information about the position of equilibrium and the relative concentrations of species involved in a chemical reaction.

Kc = [X] [Y]/[XY]

\(0.25 = (0.1 + x)^2/(0.5 - x)\)

\(0.25(0.5 - x) = (0.1 + x)^2\)

\(0.125 - 0.25x =0.01 + 0.2x + x^2\\ x^2 + 0.45x - 0.115 = 0\)

x = 0.18 M

The equilibrium amount of X and Y=  0.28 M and the equilibrium concentration of XY = 0.32 M

Learn more about equilibrium constant:

https://brainly.com/question/29253884

#SPJ1

Based on the answer to the question that we have;

The ratio of the product to reactant concentrations in a chemical reaction at equilibrium is represented quantitatively by the equilibrium constant, abbreviated as K.

It is a cornerstone of the theory of chemical equilibrium.

A chemical reaction's equilibrium position and the relative concentrations of the species involved can both be learned from the equilibrium constant's value.

Kc = [X][Y]/[XY]

\(0.25 = (0.1 + x)^2/(0.5 - x)\\0.25(0.5 - x) = (0.1 +x)^2\\0.125 - 0.25x = 0.01 +0.2x +x^2\\= 0.18 M\)

The equilibrium concentration of;

XY =0.5 - 0.18

=0.32 M

Then the equilibrium amount of

X and Y is

0.1 + 0.18= 0.28 M.

Learn more about equilibrium:brainly.com/question/29253884

#SPJ1

If the wavelength is short, the frequency will be higher.

Frequency is defined as  the number of waves which get through a specific area in the period of time. So if a wave takes about half second of  the time, then the frequency is 2 / second.

Wavelength is defined as the distance between two similar points in the cycles which is propagated in space or along a wire. In wireless systems, this length of a wave is usually in different units such as meters, centimeters or millimeters .

The SI unit of wavelength is metre which is denoted as m. While on the other hand,  the multiples of a metre is also used for measuring wavelength. Exponential powers of 10 are also used when wavelengths are of a very large size.

so we can conclude that frequency and wavelength are inversely proportional to each other.

learn more about wavelength here: https://brainly.com/question/10750459

#SPJ1

Answer:

i think it is b

Explanation:

if not right i sry

Answer:

B

Explanation:

Answer:

The sun provides most of the energy on earth because it is the earth's (and the solar system's) greatest source of heat and light.

Explanation:

The process of photosynthesis in plants uses the energy from the sun and converts that energy to be used for plants.
The burning of fossil fuels produces greenhouse gases which trap the heat in our earth's atmosphere (causing global warming).

MnO4- + 4e- → MnO2 + 2H2O Now the half-equation is balanced in alkaline medium.

To balance the half-equation MnO4- → MnO2 in alkaline medium, we need to follow the steps for balancing redox reactions in basic solution. The goal is to balance the number of atoms and charges on both sides of the equation.

Start by balancing the atoms other than oxygen and hydrogen. In this case, we only have manganese (Mn) atoms. There is one Mn atom on both sides, so the Mn atoms are already balanced.

Balance the oxygen atoms by adding water (H2O) molecules to the side that lacks oxygen. Since there are four oxygen atoms on the left side (MnO4-) and only two on the right side (MnO2), we need to add two water molecules to the right side:

MnO4- → MnO2 + 2H2O

Next, balance the hydrogen atoms by adding hydrogen ions (H+) to the side that lacks hydrogen. In this case, the left side (MnO4-) already has sufficient hydrogen atoms, so no hydrogen ions need to be added.

Balance the charges by adding electrons (e-) to the side that has a higher charge. MnO4- has a charge of -1, while MnO2 has no charge. Since the left side has a higher charge, we need to add electrons to the right side:

MnO4- + 4e- → MnO2 + 2H2O

Now the half-equation is balanced in alkaline medium. The Mn atoms, oxygen atoms, hydrogen atoms, and charges are all balanced. The addition of water and hydrogen ions helps balance the oxygen and hydrogen atoms, while the addition of electrons balances the charges.

For more such questions on alkaline medium. visit:

https://brainly.com/question/27960992

#SPJ8

The Transcontinental Railroad was the main development that started a large movement of settlers to California. It was the first railway line to span the entire continent, connecting the east and west coasts of the United States.

The railroad greatly facilitated migration and allowed for widespread settlement of the West. It improved communication between the east and west coasts, sped up transportation, and made it possible for a more productive interchange of goods.

Also, the railroad made it possible for prospectors to reach California in search of the California Gold Rush. Also, the railroad made it possible for cattle ranchers to transport their herds of cattle to the California stockyards.

As a result, there was more beef available, which aided in the state's agriculture sector's expansion. Also, the railroad offered an effective way to ship mining and agricultural goods to the east coast.

Hence, the Transcontinental Railroad served as the main driving force behind the massive migration of settlers to California.

To learn more about California visit:

https://brainly.com/question/30374131

#SPJ1

Answer:

KCL

Explanation:

is more soluble in 100grams of H2O at 70 degrees Celsius?

Answer:

Discrepant events — demonstrations that produce unexpected outcomes — are used in science to capture students' attention and to confront their beliefs about a “phenomenon by producing an outcome which is contrary to what their previous experiences would lead them to believe is true” (Misiti, 2000, p.