what chemical processes are used to make plastic bags
Answers
Polymerization of ethylene is used to make plastic bags.
What is Polymerization?Polymerization can be described as a process of reacting monomer molecules together in a reaction to form polymer chains or 3D networks. There are forms of polymerization and different systems exist to categorize them.
In polymerization, the monomers combine chemically to form a very large chainlike network known as a polymer.
As alkenes polymerize in straightforward radical reactions, they produce compounds such as polyethylene and polyvinyl chloride, which are formed in high tonnages each year because of their usefulness in manufacturing processes of commercial products, such as insulation, piping, and packaging.
In general, polymers such as PVC are known as "homopolymers", as they contain repeated long chains of the same monomer unit, whereas polymers that contain more than one monomer unit are known as copolymers.
Polythene is formed by the addition reaction of the ethylene molecules with double and triple bonds.
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Related Questions
Students in Mr. Garcia's class were having a race! No, not running. Instead they rolled tennis balls down a wooden track. The tennis balls have the same mass and diameter. Using the data table, decide which ball had the MOST kinetic energy.
Answers
Answer:
it's entertaining. Energy though is the answer
Mg (s) + 2 HCl (aq) --> MgCl2 (aq) + H2 (g)
Use the balanced chemical equation above to determine the number of moles of hydrogen gas that would be produced if 3.50 moles of solid magnesium reacted. please show all work and record your answer with proper units and significant figures.
Pls help
Answers
Answer:
2Mg + 4HCl (aq) --> 2 MgCl2 (aq) + H2
Explanation:
balanced...
Polyelectrolytes are typically used to separate oil and water in industrial applications. The separation process is dependent on controlling the pH. Fifteen (15) pH readings of wastewater following these processes were recorded. Is it reasonable to model these data using a normal distribution? 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 10.0 10.5 7.6 11.4 11.4 10.0 Yes, it passes the "fat pencil" test. Therefore, a normal distribution is a reasonable model. No, it does not pass the "fat pencil" test. Therefore, a normal distribution is not a reasonable model. O Yes, it passes the "fat pencil" test. Therefore, a normal distribution is not a reasonable model. O No, it does not pass the "fat pencil" test. Therefore, a normal distribution is a reasonable model.
Answers
No, it does not pass the "fat pencil" test. Therefore, a normal distribution is not a reasonable model. Option B is the correct answer.
The "fat pencil" test is a quick visual check to determine if a dataset can be reasonably approximated by a normal distribution. In this case, the pH readings of wastewater show a significant deviation from a normal distribution. The presence of several low pH values (1.0) and a few high pH values (10.0, 10.5, 11.4) indicate a non-normal distribution with skewness and potential outliers. Therefore, it is not reasonable to model these data using a normal distribution.
Option B is the correct answer.
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What can move from energy level to energy levels when it gains or loses what
Answers
Answer:
nothing
Explanation:
Explain
the
properties
and
characteristics of
gases and
liquids and how they affect their
use as fluid power mediums.
Answers
Answer:
Gases:
Gases can be squeezed into smaller spaces when pressure is applied.
Gases can expand to fill any available space.
Gases are light and can move easily.
Gases are used in systems that need quick and flexible movements.
Liquids:
Liquids cannot be easily squeezed into smaller spaces.
Liquids take the shape of the container they are in.
Liquids are heavier and flow more slowly.
Liquids are used in systems that require strong forces and precise control.
How these properties affect their use as fluid power mediums:
Gases are used when we want things to move quickly and easily, like in pneumatic systems (e.g., inflating balloons).
Liquids are used when we need strong forces and precise control, like in hydraulic systems (e.g., operating heavy machinery).
So, gases are good for quick and flexible movements, while liquids are better for strong forces and precise control.
The reaction R of the body to a dose M of medication is often represented by the general function R(M)=M^2(C/2−M/3where C is a constant. If the reaction is a change in blood pressure, R is measured in millimeters of mercury (mmHg). If the reaction is a change in temperature, Ris measured in degrees Fahrenheit ("F). The rate of change dR/dM is defined to
be the body's sensitivity to the medication. Find a formula for the sensitivity dR/dM=
Answers
A formula for the sensitivity dR/dM represents the sensitivity of the body's reaction to the medication. It shows how the reaction changes with respect to the dose of the medication, M. The term M*C represents the contribution of the constant C to the sensitivity, while the term \((2M^2)/3\) represents the contribution of the dose M itself.
To find a formula for the sensitivity, dR/dM, let's differentiate the given function R(M) with respect to M.
Step 1: Start with the function \(R(M) = M^2(C/2 - M/3).\)
Step 2: Apply the power rule of differentiation to differentiate M^2. The power rule states that if
\(f(x) = x^n, then f'(x) = n*x^(n-1). \\\)
n this case, n = 2.
\(dR/dM = 2M^(2-1)*(C/2 - M/3).\)
Simplifying, we have:
\(dR/dM = 2M*(C/2 - M/3).\)
Step 3: Distribute the 2M to each term inside the parentheses:
\(dR/dM = M*C - (2M^2)/3.\)
This formula represents the sensitivity of the body's reaction to the medication, dR/dM. It shows how the reaction changes with respect to the dose of the medication, M. The term M*C represents the contribution of the constant C to the sensitivity, while the term \((2M^2)/3\) represents the contribution of the dose M itself.
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the formula for the sensitivity, or the rate of change of the reaction R with respect to the dose M, is
dR/dM = MC - M\(^2^/^3\)
How do we calculate?We calculate the derivative of the reaction function R(M) with respect to M.
the reaction function: R(M) = M²(C/2 - M/3)
We will apply the power rule and the constant multiple rule of differentiation,
dR/dM = d/dM [M²(C/2 - M/3)]
= 2M(C/2 - M/3) + M²(0 - (-1/3))
= 2M(C/2 - M/3) + M\(^2^/^3\)
dR/dM =\(MC - 2M^2^/^3 + M^2^/^3\)
= \(MC - M^2^/^3\)
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hello everyone, i need resources to help for my chemistry test, if you have any free sources for studying: mole conversions, stoichiometry, thermochemistry, reaction types, molar mass, hess' law and chemical equations. That would be nice cuz im studying last minute. Thank you.
Answers
Answer:
Yes, there are some free resource like quiz..let quizzes to help guide you through your studying, so if you want just post the questions and I can answer them as well.
Which term names the process when two hydrogen atoms combine to form helium?.
Answers
The process that names when two hydrogen atoms combine to form helium is called nuclear fusion. It's a reaction where atomic nuclei combine to create a heavier nucleus and give off a significant amount of energy.
The reaction begins when the hydrogen atoms are heated and put under intense pressure, leading to the creation of helium and a substantial amount of energy. This process is prevalent in stars like the sun. The sun’s core is incredibly hot, with temperatures reaching millions of degrees Celsius. At these high temperatures and pressures, the nuclei of hydrogen atoms collide and join together to form helium. The fusion of hydrogen atoms is a vital process in the sun since it is the energy source that powers the sun and keeps it burning. The reaction produces an enormous amount of energy that radiates out from the sun and provides heat and light to the planets in our solar system.
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Question 4 of 10
Based on the trend in valence electrons across periods for main-group
elements, how many valence electrons does fluorine (F) have?
A. 5
O
B. 7
C. 4
D. 6
Answers
Answer:
The answer is 7
Explanation:
Guessed it
]
Consider the following intermediate chemical equations.
C(s) +
CO(g) +
O₂(g) → CO(g)
How will oxygen appear in the final chemical equation?
O O2(g) as a product
O O2(g) as a reactant
OO(g) as a product
O 20(g) as a reactant
O₂(g) → CO₂(g)
Answers
In the above intermediate chemical equation, oxygen will appear as follows: O₂(g) as a reactant (option B).
What is a chemical equation?A chemical equation in chemistry is a symbolic representation of a chemical reaction where reactants are represented on the left, and products on the right.
According to this question, an intermediate chemical equation is presented as follows:
CO(g) + O₂(g) → CO(g)C(s) + O₂(g) → CO₂(g)As observed in the above chemical equation, oxygen will react in its gaseous form i.e. as a reactant.
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what is a reaction that uses a catalyst?
Answers
One of the most commonly known catalysed reaction is that of Hydrogen Peroxide turning into Water
In this reaction, we can use Potassium Permanganate (KMnO₄) or Palladium (Pd) as a catalyst.
These catalysts helps Hydrogen Peroxide turn into water and oxygen
Catalyst: Substances that change the rate of a chemical reaction and themselves remain chemically unchanged after the reaction are called catalysts.
Example:- In the process of manufacturing of ammonia Fe is used as Catalyst.
\(N _{2} (g)+ 3H _{2} (g) \huge \rightarrow {}^{Fe}\rightarrow \small{3NH _{3}(g)}\)
Note:- there is only one arrow. I was unable to put iron over the arrow ..
Hope This Helps You ❤️what are two other names for the light independent reactions?
Answers
Answer: The Calvin cycle and the Calvin-benson cycle
Explanation:
A sample of O2 with an initial temperature of 50.0 oC and a volume of 105 L is cooled to -25 oC. The new pressure is 105.4 kPa and the new volume is 55.0 L. What was the initial pressure of the sample? Show your work, using the G.U.E.S.S. method.
Answers
Answer:
71.92 kPa
Explanation:
Using the combined gas law equation;
P1V1/T1 = P2V2/T2
Where;
P1 = initial pressure (kPa)
P2 = final pressure (kPa)
V1 = initial volume (L)
V2 = final volume (L)
T1 = initial temperature (K)
T2 = final temperature (K)
According to the information provided in this question;
T1 = 50°C = 50 + 273 = 323K
V1 = 105L
T2 = -25°C = -25 + 273 = 248K
P2 = 105.4 kPa
P1 = ?
V2 = 55.0 L
Using P1V1/T1 = P2V2/T2
P1 × 105/323 = 105.4 × 55/248
105P1/323 = 5797/248
0.325P1 = 23.375
P1 = 23.375 ÷ 0.325
P1 = 71.92 kPa
applications of anaerobic respiration
Answers
Applications of anaerobic respiration is generating microbial fuel cell
Anaerobic respiration is the because of lack of oxygen they carry out respiration in the absence of oxygen to produce the energy they require called as anaerobic respiration
Anaerobic respiration is useful generating microbial fuel cell which employ bacteria that respire solid electron acceptor to transfer electron from reduced compound to an electrode this process can simultaneously degrade organic carbon waste and generate electricity
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Starting with 3.10 moles of iron how many moles of iron (III) oxide are produced?
Answers
3.10 moles of iron will produce 4.65 moles of iron (III) oxide are produced.
What is oxide ?
Oxide is a compound formed when an element combines with oxygen. It usually has the form of a solid and is often found naturally in the environment. Oxides can be either ionic or covalent in nature, depending on the elements involved.
Examples of oxides are iron oxide, carbon dioxide, and sulfur dioxide. Oxides can also be created synthetically in laboratories. Oxides have many uses in industry, including as catalysts, pigments, and in the production of ceramics.
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SENSORCAINE/EPINEPHRINE is an injectable solution that contains 0.25% w/v bupivacaine HCl and 1:200,000 w/v epinephrine. How much epinephrine (mg) would be contained in a 50-mL vial of this solution? Please round to the nearest hundredth. Please show the work up steps. (answer is 0.25 mg)
Answers
A 50-mL vial of SENSORCAINE/EPINEPHRINE solution contains approximately 0.25 mg of epinephrine. This is calculated based on the concentration of 1:200,000 w/v in the solution.
To determine the amount of epinephrine (mg) in a 50-mL vial of SENSORCAINE/EPINEPHRINE solution, we need to consider the concentration of epinephrine in the solution. The solution contains 1:200,000 w/v epinephrine, which means that for every 1 part of epinephrine, there are 200,000 parts of the solution.
To calculate the amount of epinephrine in the solution, we can use the following formula:
Amount of epinephrine = Total volume of solution (mL) × Concentration of epinephrine (mg/mL)
In this case, the total volume of the solution is 50 mL, and the concentration of epinephrine is 1:200,000 w/v. To convert the concentration to mg/mL, we divide 1 mg by 200,000 mL:
Concentration of epinephrine (mg/mL) = 1 mg / 200,000 mL = 0.000005 mg/mL
Finally, we can calculate the amount of epinephrine in the 50-mL vial:
Amount of epinephrine = 50 mL × 0.000005 mg/mL = 0.00025 mg
Rounding to the nearest hundredth, the amount of epinephrine in a 50-mL vial of SENSORCAINE/EPINEPHRINE solution is 0.25 mg.
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When naming the second nonmetal in a covalent molecule, the numerical value is indicated by a __.
Answers
Answer:
roman numeral
Explanation:
PLEASE ANSWER!! I WILL MARK AS BRAINLESS 11+ points!!
Match each front to its description.
Answers
Answer:
Explanation:
cold front: when a fast moving cold air...
warm front: when a warm air mass overtakes...
stationary front: when a warm and cold mass meet...
occluded front: when a warm air mass is caught..
Answer:
1 > 2
2 > 1
3 > 3
4 > 4
Explanation:
going across
iven the biaryl product, select the two reactants that would give this product via a suzuki coupling. the unknown compound reacts with palladium tetrakis triphenyl phosphine, heat and sodium carbonate to give an alkene where each carbon is bonded to a benzene ring and a hydrogen and the stereochemistry is cis. select two reactants. an alkyne where carbon 1 is bonded to a benzene ring and carbon 2 is bonded to hydrogen. an alkene where carbon 1 is bonded to bromine and carbon 2 is bonded to benzene. the stereochemistry is cis. an alkene where carbon 1 is bonded to bromine and carbon 2 is bonded to benzene. the stereochemistry is trans. phenyl grignard tri butyl tin is bonded to benzene boronic acid is bonded to benzene an alkene is bonded to three hydrogens and one benzene ring.
Answers
Based on the given information, the two reactants that would give the described product via a Suzuki coupling are:
An alkyne where carbon 1 is bonded to a benzene ring and carbon 2 is bonded to hydrogen.
An alkene where carbon 1 is bonded to bromine and carbon 2 is bonded to benzene. The stereochemistry is cis.
The Suzuki coupling is a widely used cross-coupling reaction that involves the palladium-catalyzed cross-coupling of an organoboron compound (such as a boronic acid) with an organic halide or pseudo-halide. In this case, the reactants that can undergo the Suzuki coupling are the alkyne and the cis-alkene described above.
The alkene and alkyne provide the necessary carbon-carbon bond formation, while the benzene rings and hydrogens ensure the desired connectivity in the product. The palladium tetrakis triphenyl phosphine catalyst, heat, and sodium carbonate facilitate the coupling reaction, resulting in the formation of the biaryl product with the specified stereochemistry.
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a 50.0 gram sample of water is heated from 20.5 oc to 27.1 oc. how many joules of heat were added to this solution?
Answers
If there are specific terms or phrases mentioned in the question, they should be used in the answer to demonstrate understanding of the topic at hand.
Here is the solution to the given problem;The formula for calculating heat is Q = mc∆T where Q is the heat added or removed, m is the mass of the substance, c is the specific heat of the substance, and ∆T is the change in temperature. To solve for Q, we need to know the values of m, c, and ∆T.Let's break down the problem given in the question above. A 50.0-gram sample of water is heated from 20.5°C to 27.1°C. We can use the formula above to calculate the amount of heat added.Q = mc∆TQ = (50.0 g)(4.18 J/g·°C)(27.1°C - 20.5°C)Q = (50.0 g)(4.18 J/g·°C)(6.6°C)Q = 1379.4 JTherefore, the amount of heat added to the water is 1379.4 Joules.for more such question on temperature
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What is the net ionic equation for ammonium carbonate and barium nitrate?
Answers
You must know the solubility of each species. Since we have a precipitate formed, the net ionic equation will contain only those ions involved in the precipit
Write the formulae of the acid and base of ZnS.
Answers
ZnS is the chemical formula of the zinc sulphide. Zinc sulphide contain two ions i.e. ( Zn ⁺² ) and ( S ⁻² ) ion present in zinc sulphide.
What is acid ?A Bronsted - Lowry acid or Lewis acid is a molecule or ion that has the ability to donate a proton or establish a covalent bond with an electron pair. Proton donors, also known as Bronsted - Lowry acids, are the first class of acids.
Any hydrogen containing material that has the ability to donate a proton (hydrogen ion) to another chemical is considered an acid. A base is a molecule or ion that can take up an acid's hydrogen ion. Typically, sour tastes help to identify acidic chemicals.
Thus, ZnS is the chemical formula of the zinc sulphide. Zinc sulphide contain two ions i.e. ( Zn ⁺² ) and ( S ⁻² ) ion present in zinc sulphide.
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a chemical equation is a statement using chemical that expresses both the identities and the relative of the reactants and products involved in a chemical or physical change. multiple choice question. numbers; masses formulas; quantities formulas; masses names; quantities
Answers
A chemical equation is a statement using chemical formulas expresses both the identities and the relative quantities of the reactants and products involved in a chemical or physical change. The correct answer is B.
An expression of the identities and relative quantities of the reactants and products involved in a chemical or physical transformation is called a chemical equation. Chemical equations are statements made using chemical formulas.
What exactly is a chemical equation?In chemical equations, variables like the direction of a reaction and the physical states of the reacting parties are represented by symbols. In 1615, the French chemist Jean Beguin created the first chemical equation.
Chemical equations, such as the one below, can be used to depict chemical reactions on paper (for the reaction between hydrogen gas and oxygen gas to form water).
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Am I right? (Easy peasy)
Answers
Answer:
Yes
Explanation:
Yes good luck on your assignment!
which sentence is a scientific statement
Answers
The scientific statement is
D. There is life on some other planet in the universe aside from Earth.
What is scientific statement?A scientific statement is a statement that is based on empirical evidence, logical reasoning, and the scientific method. It is a claim or proposition that can be tested, observed, or measured, and is subject to scrutiny and verification.
Scientific statements are characterized by objectivity, reliance on evidence, and the potential for falsifiability or validation through experiments or further investigation. these statements aim to describe, explain, or predict phenomena in the natural world and are an essential part of scientific inquiry and the advancement of knowledge.
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complete question
Which sentence is a scientific statement?
A.
Food cooked in ceramic pots has a better aroma than food cooked in copper pots.
B.
A tall glass of water tastes better with a lemon wedge and ice cubes.
C.
Today, there are more viewers watching baseball than ice hockey on television.
D.
There is life on some other planet in the universe aside from Earth
An endothermic process may be spontaneous if ______. Multiple choice question. the endothermic process results in a precipitation of a crystalline solid from a liquid solution the endothermic process converts a gas reactant into a liquid or solid product the product particles have more freedom of motion than the reactant particles the product particles have less freedom of motion than the reactant particles
Answers
An endothermic process may be spontaneous if: C. the product particles have more freedom of motion than the reactant particles.
An endothermic reaction can be defined as a type of chemical reaction in which heat energy is absorbed from the environment.
Generally, heat energy is absorbed in a chemical reaction when the energy of the products is greater (more) than the energy of the reactants and this is referred to as an endothermic reaction.
Similarly, an endothermic process may be spontaneous when the product particles have more freedom of motion than the reactant particles.
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1. Which of the following is the amount of space that an object takes up?
1. density
2. volume
3. mass
Answers
Answer:
2. volume
Explanation:
Answer:
volume
Explanation:
3
2.035g of hydrogen gaz prockset)
a pressure of 1.015 atm in a 9.00.
Container at -211.76 °c . what will be
be the temperature in °c If an
additional
be the 2.099 gram of hydrogen
gas is added to the container and
the pressure increases to 20.15 atm
Answers
The final temperature is 280.59 degrees Celsius.
Who or what is putting pressure on the ATM?The term atmospheres (atm), defined as follows: A mercury column one millimetre high would impose a pressure of one atm, or 1.01325 x 105 Pa. millimetres of mercury (mmHg). One atmosphere of pressure is generated by a mercury column that is 760 mm high. Because pressure and force are connected, you may use the physics equation to compute one if you know the other.
P1V1/T1 = P2V2/T2
Where P1, V1, and T1 are the initial pressure, volume, and temperature, and P2, V2, and T2 are the final pressure, volume, and temperature.
Given:
Initial pressure (P1) = 1.015 atm
Initial volume (V1) = 9.00 L
Initial temperature (T1) = -211.76 °C (62.39 K)
Mass of hydrogen gas initially (m1) = 2.035 g
Additional mass of hydrogen gas added (m2) = 2.099 g
Final pressure (P2) = 20.15 atm
PV = nRT
n1 = m1/MH2 = 2.035 g / 2.016 g/mol = 1.011 mol
n2 = m1/MH2 + m2/MH2 = 2.035 g / 2.016 g/mol + 2.099 g / 2.016 g/mol = 2.059 mol
We can assume that the volume of the container is constant, so we can set V1 = V2 in the combined gas law equation:
P1/T1 = P2/T2
Solving for T2:
T2 = P2T1V1 / (P1*V2)
Substituting the values:
V2 = V1 = 9.00 L
T2 = (20.15 atm)(62.39 K)(9.00 L) / (1.015 atm)(2.059 mol)(8.314 J/(mol*K))
T2 = 553.75 K or 280.59 °C
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Question:
A container holds 2.035 grams of hydrogen gas at a pressure of 1.015 atm and a temperature of -211.76 °C. What will be the temperature in °C if an additional 2.099 grams of hydrogen gas is added to the container and the pressure increases to 20.15 atm?
Ethane is chlorinated in a continuous reactor: C2H6 +Cl2 → C2H5Cl + HCl Some of the product monochloroethane is further chlorinated in an undesired side reaction: C2H5Cl +Cl2 → C2H4Cl2 + HCl a. Take a basis of 100.0 mol of C2H5Cl produced. Assume that the feed contains only ethane and chlorine and that all of the chlorine is consumed. How many degrees of freedom remain (use atomic balances)?
Answers
Ethane is chlorinated in a continuous reactor 195.41 g C₂H₅Cl by using atomic balances
The balanced chemical reaction is written as:
C₂H₆ + Cl₂ → C₂H₅Cl + HCl
Mol of C₂H₆ available: 145 g/ 30 g/mol = 4.833 mol
Mol of Cl₂ available: 215 g/ 70.9 g/mol = 3.032 mol
So, the limiting reactant is Cl₂. We base our theoretical yield from here.
3.032 mol Cl₂ (1 mol C₂H₅Cl/ 1 mol Cl₂)(64.45 g/mol C₂H₅Cl) = 195.41 g C₂H₅Cl
While atomic balances the product side only has one oxygen atom, the reactant side contains two oxygen atoms. Mass is not balanced as a result.
Additionally, the total charge is zero on the reactant side but negative on the product side. As a result, the reaction's charge is unbalanced.
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what is the net ionic equation for the reaction between an aqueous solution of Chromium (III) Chloride and aqueous lead (II) Nitrate?
Answers
Answer: Pb 2+ (aq)+ 2CL- (aq) -----> PbCl2 (s)
Explanation: According to the precipitation rules, Cl- is soluble exept if one of the cations are Pb 2+.