The general formula for the alkene series is:


C2nHn-2

CnH2n+2

CnH2n-2

CnH2n

Answer:

hi

Explanation:

Answer:

Isotopes of an element are atoms of the same element that have different number of neutrons.

Cyclopropane and cyclohexane are the two rings having roughly the same bond angle in their preferred conformations.

To learn more about Cyclopropane, refer to:

https://brainly.com/question/14947979

#SPJ4

When soil freezes, the water in the soil can freeze as well, which can cause the concentration of dissolved salts in the soil solution to increase.

Precipitation refers to the process by which a solid substance is separated from a solution or a gas.

This is because the freezing of water causes it to separate from the soil particles, which can cause a higher concentration of dissolved salts in the remaining soil solution.

As the salt concentration increases, the solubility of the salts in the solution decreases, which can cause the salts to precipitate out of the solution and form crystals.

As the crystals grow, they can cause the soil to expand, which can lead to damage to roads, buildings, and other structures. This process is known as salt expansion.

In conclusion, soil freezing can lead to an increase in salt concentration in the soil solution, which can cause salt crystal precipitation and salt expansion.

Learn more about Precipitation here:

https://brainly.com/question/30231225

#SPJ4

Kc=28.7  is the equilibrium constant

[CO]=26.7g(28.01g/mol)(5.25L)=0.182M

[H2]=2.33g(2.016g/mol)(5.25L)=0.220M

[CH3OH]=8.65g(32.04g/mol)(5.25L)=0.0514M

Kc= x/(0.182−x)(0.220−2x)2

   = 0.0514/(0.182−0.0514)(0.220−2(0.0514))2

   = 28.7

a number that expresses the relationship between the amounts of products and reactants present at equilibrium in a reversible chemical reaction at a given temperature.

So, this shows the equilibirum constant is 28.7

learn more about equilibirum constant here;

https://brainly.com/question/12958543

#SPJ2

Answer:

C thermal

Explanation:

Answer:

Swedish physicist Johannes Rydberg

Explanation:

Answer:

50.25 g of sulphur, S.

Explanation:

Mass of Na₂SO₄ = 223 g

Mass of sulphur =?

Next we shall determine the molar mass of Na₂SO₄. This can be obtained as follow:

Molar mass of Na₂SO₄ = (23×2) + 32 + (16×4)

= 46 + 32 +64

= 142 g/mol

Mass of S in 142 g of Na₂SO₄ = 32 g

Finally, we shall determine the mass of S in 223 g of Na₂SO₄. This can be obtained as follow:

142 g of Na₂SO₄ contains 32 g of S.

Therefore, 223 g of Na₂SO₄ will contain = (223 × 32) / 142 = 50.25 g of S.

Thus, 223 g of sodium sulfate, Na₂SO₄ contains 50.25 g of sulphur, S.

Answer:

I just love the killua pfp

I think b

Answer:

c

Explanation:

because it forces and help it

The pillar of sustainability broken by recycling electronics in India is environmental sustainability. Implementing a law that restricts electronics recycling to the US would not necessarily be the most effective solution, as it overlooks the complex global dynamics of electronic waste management.

Recycling electronics in India often involves improper disposal methods, such as burning or dismantling without proper safety measures. This leads to environmental pollution, including the release of hazardous substances into the air, soil, and water, thus violating the principle of environmental sustainability.

However, simply mandating that electronics can only be recycled in the US may not be the most optimal solution. Electronic waste is a global issue, and restricting recycling to a single country disregards the fact that electronic products are manufactured and consumed worldwide. A more comprehensive approach to addressing electronic waste would involve international cooperation, strict regulations, and monitoring of recycling practices to ensure they meet environmental standards.

Efforts should focus on improving recycling practices globally, including promoting responsible electronic waste management, developing sustainable recycling infrastructure in multiple countries, and encouraging the adoption of safe and environmentally friendly recycling practices. This approach would foster global sustainability and address the challenges associated with electronic waste disposal more effectively than a geographically limited restriction.

To learn more about sustainability, here

https://brainly.com/question/32771548

#SPJ4

The molarity of the base used in the experiment, which was determined based on the recovered NaCl and the volumes of hydrochloric acid and sodium hydroxide, was approximately 1.15 M.

To determine the molarity of the base used in the experiment, we need to use the stoichiometry of the balanced chemical equation and the given data.

The balanced chemical equation for the reaction between hydrochloric acid (HCl) and sodium hydroxide (NaOH) is:

HCl + NaOH → NaCl + H2O

First, we need to find the number of moles of NaCl produced. We can do this by using the given mass of NaCl (2.22 g) and its molar mass (58.44 g/mol):

moles of NaCl = mass of NaCl / molar mass of NaCl

moles of NaCl = 2.22 g / 58.44 g/mol

moles of NaCl = 0.038 moles

Next, we can use the stoichiometry of the balanced equation to determine the number of moles of NaOH that reacted. Since the mole ratio between NaCl and NaOH is 1:1, the number of moles of NaOH is also 0.038 moles.

Now, we can calculate the molarity of the base (sodium hydroxide) using the given volume of sodium hydroxide solution (0.033 L):

Molarity of NaOH = moles of NaOH / volume of NaOH solution

Molarity of NaOH = 0.038 moles / 0.033 L

Molarity of NaOH ≈ 1.15 M

Therefore, the molarity of the base used in the experiment is approximately 1.15 M.

For more such question on experiment. visit :

https://brainly.com/question/20639065

#SPJ8

Marty's chemical has a specific heat capacity of 1.49 J/(g*C). This means that it requires 1.49 J of heat to raise the temperature of 1 gram of the chemical by 1 degree Celsius.

The specific heat capacity of the chemical can be calculated using the formula:
q = m * c * ΔT
Where q is the amount of heat transferred, m is the mass of the chemical, c is the specific heat capacity, and ΔT is the change in temperature.
In this case, the amount of heat transferred is 2850 J, the mass of the chemical is 24g, the initial temperature is 12 degrees C, and the final temperature is 81 degrees C. So, we can write:
2850 J = 24 g * c * (81 C - 12 C)
Simplifying:
2850 J = 24 g * c * 69 C
Dividing both sides by (24 g * 69 C):
c = 1.49 J/(g*C)
Therefore, the specific heat capacity of the chemical is 1.49 J/(g*C).
The specific heat capacity is the amount of heat required to raise the temperature of 1 gram of a substance by 1 degree Celsius. It is a physical property of the substance and can be used to determine the amount of heat required to change the temperature of a given mass of the substance.
In this case, we have been given the mass of the chemical, the amount of heat transferred, and the change in temperature. By using the formula for specific heat capacity, we can calculate the value of c.
Marty's chemical has a specific heat capacity of 1.49 J/(g*C). This means that it requires 1.49 J of heat to raise the temperature of 1 gram of the chemical by 1 degree Celsius.
To calculate the specific heat capacity of a substance, we need to use the formula:
q = m * c * ΔT
Where q is the amount of heat transferred, m is the mass of the substance, c is the specific heat capacity, and ΔT is the change in temperature.
In this case, we have been given the mass of the chemical (24g), the amount of heat transferred (2850 J), the initial temperature (12 degrees C), and the final temperature (81 degrees C). We can use these values to calculate the specific heat capacity of the chemical.
Therefore, the specific heat capacity of Marty's chemical is 1.49 J/(g*C).
This means that it requires 1.49 J of heat to raise the temperature of 1 gram of the chemical by 1 degree Celsius. The specific heat capacity is a physical property of the substance, which means that it is the same regardless of the amount of the substance being used. This property can be used to determine the amount of heat required to change the temperature of a given mass of the substance.

For more information on heat capacity kindly visit to

https://brainly.com/question/28327977

#SPJ11

Answer:

d = 0.5×10¹g/cm³

Explanation:

Given data:

Volume of material = 2 m³

Mass of material = 1×10⁴ Kg

Density of material = ?

Density:

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

Formula

d = m/v

Solution:

Volume of material = 2 m³

1 m³ = 1000000 cm³

2 ×10⁶cm³

Mass of material = 1×10⁴ Kg

1 Kg = 1000 g

1×10⁷ g

by putting values into density formula

d = 1×10⁷ g/2 ×10⁶cm³

d = 0.5×10⁷⁻⁶ g/cm³

d = 0.5×10¹g/cm³

Using a substance’s rate of decay to determine its age is an example of absolute dating.

Absolute dating techniques offer more precise dates and times of origin, such as a range in age in years. Depending on the approach employed, these dates may or may not be precise.

Absolute age dating involves analysing an object's physical characteristics to ascertain its age. An earth material's true age, expressed in years, is known as its absolute age. Scientists can establish the relative age of a material by comparing the ages of two or more earth materials. Although both absolute and relative dating provide age estimates, they do so in distinct ways and yield different outcomes.

When archaeologists and geologists find artefacts at a dig site, they want to know how old the objects are so they can understand the area they are researching and how life might have been there in the past. When figuring out how ancient these objects are, absolute age dating is a crucial technique. It might be significant in determining a fossil's precise age. In order to construct a chronological history of life on Earth, this aids scientists in figuring out when specific types of organisms were alive.

To know more about absolute dating from the link

brainly.com/question/868048

#SPJ4

333.3 milliliters of 0.444 M KOH required to precipitate all of the Pb⁺² ions in 107 mL of 0.699 M Pb(NO₃)₂ solution as Pb(OH)₂.

Stoichiometry helps us use the balanced chemical equation to measure quantitative relationships and it is to calculate the amounts of products and reactants that are given in a reaction.

Molarity (M) is defined as the number of moles of solute dissolved in 1L of solution. Molarity is also known as Molar Concentration. The S.I unit of Molarity is molar (M) or mol/L.

Molarity = \(\frac{\text{Number of moles}}{\text{Volume of solution (in L)}}\)

Now put the values in above formula to find the number of moles of Pb(NO₃)₂

Molarity = \(\frac{\text{Moles of}\ Pb(NO_{3})_2}{\text{Volume of solution (in L)}}\)

Moles of Pb(NO₃)₂ = Molarity × Volume

                               = 0.699M × 0.107 L       [1ml = 0.001 L]

                               = 0.074 moles

The given balanced chemical equation is

Pb(NO₃)₂(aq) + 2 KOH(aq) → Pb(OH)₂(s) + 2 KNO₃(aq)

The mole ratio of KOH to Pb(NO₃)₂ is 2:1.

The mole of KOH = 0.074 mol × 2

                             = 0.148 moles

Now put the value in above formula to find the volume of KOH  

Molarity = \(\frac{\text{Number of moles}}{\text{Volume of solution (in L)}}\)

Volume of KOH = \(\frac{\text{Number of mole of KOH}}{\text{Molarity}}\)

Volume of KOH =  \(\frac{0.148\ mol}{0.444\ M}\)

                          = 0.333 L

                          = 333.3 mL     [1L = 1000 mL]

Thus from the above conclusion we can say that 333.3 milliliters of 0.444 M KOH required to precipitate all of the Pb⁺² ions in 107 mL of 0.699 M Pb(NO₃)₂ solution as Pb(OH)₂.

Learn more about the Molarity here: https://brainly.com/question/26873446

#SPJ4

Disclaimer: The question was given incomplete on the portal. Here is the complete question.

Question: Calculate the number of milliliters of 0.444 M KOH required to precipitate all of the Pb⁺² ions in 107 mL of 0.699 M Pb(NO₃)₂ solution as Pb(OH)₂. The equation for the reaction is:

Pb(NO₃)₂(aq) + 2 KOH(aq) → Pb(OH)₂(s) + 2 KNO₃(aq)

_________ mL KOH.

Answer:

2 are number of coloum o

Answer:

18.52g

Explanation:

(relative atomic masses: H = 1.01, O = 16.00, Ca = 40.08)

Equation (balanced):

Ca + 2H2O -> Ca(OH)2 +H2

First, calculate the number of moles of 10g calcium

No. of moles of Ca  = 10/40.08 = 0.25 mol

Then, calculate the  number of moles of 20g water

No of moles of H2O = 1.11 mol

According to the balanced equation, 1 mole of calcium reacts with 2 moles of H2O completely.  Therefore, H2O is in excess.

So, 1 mole of calcium reacts with water to form 1 mole of Ca(OH)2 (according to the mole ratio shown in the balanced equation)

Therefore, 0.25 mol of Ca(OH)2 is produced.

Mass of Ca(OH)2 produced = no. of moles x molar mass = 0.25 x (40.08 + 16 + 16 + 1.01 + 1.01) = 18.52g

Good luck!

The order of reaction is 1/2 with respect to that reactant when the concentration of a reactant is doubled.

Rate of reaction =k[A] ⁿ where n is the order of reaction

=>r₁=k[A₁]ⁿ-----(eq1)

=>r₂=k[A₂]ⁿ-------(eq2)

Dividing eq2 with eq1

=>r₂/r₁=[A₂]ⁿ / [A₁]ⁿ

=>2/1 = [4/1]ⁿ

=>4ⁿ=2

=>n=1/2

The order of reaction is characterized as the power reliance of the rate on the centralization of every reactant.

When the rate law of a reaction is resolved a similar regulation can be utilized to totally figure out the creation of the response combination. At the end of the day, the reaction request is the type to which the convergence of the particular species is raised, and it shows to what level the centralization of the species influences the pace of reaction. It likewise demonstrates up to which degree the species makes an extensive difference. For instance, the pace of a first order of reaction is resolved simply by the convergence of one animal types in the reaction.

​

To know more about order of reaction,visit here:

https://brainly.com/question/1769080

#SPJ4

When H₂S gas is removed from the system at equilibrium, the reaction shifts to the right (products) and the concentration of NH₃ increases (option C)

A French scientist (Chatelier) postulated a principle which helps us to understand a chemical system in equilibrium.

The principle states that If a an external constraint such as change in temperature, pressure or concentration is imposed on a system in equilibrium, the equilibrium will shift so as to neutralize the effect.

According to Chatelier's principle a decrease in concentration of the products will favor the forward (right) reaction.

From the above principle, we can conclude that when H₂S gas is removed from the system at equilibrium, the reaction shifts to the right (products) and the concentration of NH₃ increases.

Thus, the correct answer to the question is option C

Learn more about chemical equilibrium:

https://brainly.com/question/4289021

#SPJ1

Answer:

10 nitrogens

Explanation:

The 2 is the number of nitrogens in a molecule of N2. There are 2 of them.

The 5 is a whole different critter. It tells you that it was part of an equation and it took 5 molecules of Nitrogen to balance the equation. You only see numbers to the right of a molecule when the molecule is in an equation.

5 (2)=10

In both active and closed mines, the reaction of rainwater with iron sulfide components in the rubble converts to sulfuric acid which creates acid mine drainage.

This is a highly acidic solution that can have severe impacts on water quality and aquatic life.

Acid mine drainage can also cause damage to infrastructure and ecosystems downstream, as well as pose risks to human health.

To mitigate the effects of acid mine drainage, various treatment methods can be employed, including neutralization with alkaline substances, chemical precipitation, and biological remediation.

Prevention measures, such as the use of best management practices during mining operations and the implementation of proper mine closure procedures, can also help to minimize the production and release of acid mine drainage.

To know more about sulfide. please visit.....

brainly.com/question/12594350

#SPJ11

Answer:Thermal Energy is not a form of potential energy

Explanation:

\(\red{➤}\:\)\(\sf ({\frac{3}{2}})^{-1}÷ ({\frac{-2}{5}})^{-1}\)

\(\\\)

Since the power is in negetive,we write the reciprocal of the number and then solve it like positive exponents-

\(\begin{gathered}\\\quad\longrightarrow\quad\sf( {\dfrac{3}{2}})^{-1}÷ ({\frac{-2}{5}})^{-1}\\\end{gathered} \)

\(\begin{gathered}\\\quad\longrightarrow\quad\sf ({\dfrac{2}{3}})^{1}÷ ({\dfrac{5}{-2}})^{1}\quad (a^1=a)\\\end{gathered} \)

\(\begin{gathered}\\\quad\longrightarrow\quad\sf \dfrac{2}{3}÷ \dfrac{5}{(-2)}\\\end{gathered} \)

\(\begin{gathered}\\\quad\longrightarrow\quad\sf \dfrac{2}{3}×\dfrac{(-2)}{5}\\\end{gathered} \)

\(\begin{gathered}\\\quad\longrightarrow\quad\sf \dfrac{2×(-2)}{3×5}\\\end{gathered} \)

\(\begin{gathered}\\\quad\longrightarrow\quad\boxed{\sf{ \dfrac{-4}{15}}}\\\end{gathered} \)

Laws of Exponents-

\( \sf a^m×a^n = a^{m+n} \\

\sf a^m/a^n = a^{m-n} \\

\sf{(a^m)}^n = a^{mn} \\

\sf a^n/b^n = (a/b)^n \\

\sf a^0 = 1 \\

\sf a^{-m }= 1/a^m

\)

Answer:

B.

Explanation:

An ammonia solution contains only a few ions, and it conducts electricity only poorly.

Answer:

Explanation:

__________________________________________________________

According to Answers,

There is one covalent bond in a chlorine molecule. The formula for a chlorine molecule is Cl2, which means that there are two chlorine atoms bonded together per molecule. The structural formula for a molecule of chlorine is Cl-Cl, in which the line in between the symbols for the two atoms represents a single covalent bond.

__________________________________________________________

Hope this helps! <3

__________________________________________________________

The most useful IR bands for distinguishing a carboxylic acid from a neutral organic compound are: IR Bands: 1700-1725 cm−1

Infrared spectroscopy is a tool used to investigate chemical bonds and is used to distinguish a carboxylic acid from a neutral organic compound.

IR Bands: 1700-1725 cm−1are bands associated with the C=O group present in carboxylic acids. These bands correspond to the stretching of the C=O double bond. This region of the IR spectrum provides a great deal of information about the sample being tested. It is used to differentiate between a carboxylic acid and an ester, which has a similar band at 1735-1740 cm−1, but a lower intensity.

Overall, the 1700-1725 cm−1 band region is the most important indicator of the presence of a carboxylic acid in an IR spectrum and is the most useful band for distinguishing carboxylic acids from neutral organic compounds.

know more about IR Bands here : https://brainly.com/question/32802504

#SPJ11

The molecule has three electron pairs and is trigonal planar geometry. Carbonate ion is found in limestone as calcium carbonate.

Each atom is composed of a nucleus and one or greater electrons sure to the nucleus. The nucleus is product of one or more protons and a number of neutrons. best the maximum common form of hydrogen has no neutrons. An atom is the smallest unit of everyday matter that bureaucracy a chemical detail.

An atom is a particle of depend that uniquely defines a chemical element. An atom includes a relevant nucleus this is surrounded via one or extra negatively charged electrons. The nucleus is definitely charged and contains one or extra pretty heavy debris known as protons and neutrons.

An atom itself is made from 3 tiny types of debris referred to as subatomic particles protons, neutrons, and electrons. The protons and the neutrons make up the center of the atom referred to as the nucleus and the electrons fly around above the nucleus in a small cloud.

Learn more about atoms here:-https://brainly.com/question/6258301

#SPJ4

Answer:

Oxidation: A process in which an atom loses an electron and therefore increases its oxidation number. ... So oxidation reactions need not involve oxygen. This redox reaction is actually the sum of two separate half-reactions (a reduction half-reaction and an oxidation half-reaction).

Explanation:

Hope this helped!

Oxygen is not a necessary reactant for oxidation reaction.

In chemistry oxidation is called the chemical phenomenon in which an atom, molecule or ion loses one or more electrons, thus increasing its positive charge.

As oxygen is an element that usually accepts these electrons, this type of reaction was called oxidation reactions.

Therefore, we can conclude that oxygen is not a necessary reactant for oxidation reaction.

Learn more here: https://brainly.com/question/25202098

Answer:

d. 54.9 kPa

Explanation:

mmHg and Pa are units of pressure used in chemistry principally in the study of gases. 1mmHg is equal to 133.322Pa. 412mmHg are:

412 mmHg * (133.322Pa / 1mmHg) = 54929 Pa

The prefix K (Kilo) represents one thousand of the determined unit.

54929Pa are:

54929Pa * (1KPa / 1000Pa) = 54.9kPa

Right answer is: