what polymer parameter was investigated with ldpe and hdpe?

Answer: a chemical bond; in which one atom donates an electron to another atom

Explanation:

pCO2 is an important factor that affects various aspects of water chemistry and the impacts of ocean acidification. When pCO2 increases, the concentration of total CO2 dissolved in water also increases. This leads to changes in pH, which decreases due to increasing atmospheric CO2 concentration.

When pCO2 rises, the concentration of only CO2 dissolved in water increases. The dissolved CO2 forms carbonic acid, which contributes to the acidification of the ocean. This increase in CO2 affects the equilibrium between CO2, HCO3-, and CO3^2-, shifting it towards higher levels of dissolved CO2 and H+ ions, resulting in a lower pH.

In terms of the impacts of ocean acidification on different organisms, the effects can vary depending on their specific needs. An organism that requires CO2 is likely to fare better under ocean acidification since the increase in dissolved CO2 can provide them with a favorable environment. However, organisms that rely on HCO3- or CO3^2- may fare worse under ocean acidification, as the lower pH interferes with the availability of these carbonate ions, which are essential for shell formation and calcification in some marine organisms.

To know more about pCO2, click here, https://brainly.com/question/33500517

#SPJ11

The value of ΔS° for reaction  is - 22.2 J/K.mol

\(SO_{2}(s)+NO_{2} (g)\) → \(SO_{3}(g)+NO(g)\)

Calculation,

Given value of S°(J/K.mol) for

\(SO_{2}(s)\) = 248.5

\(NO_{2} (g)\) = 240.5

\(NO(g)\) = 210.6

\(SO_{3}(g)\) = 256.2

Formula used:

ΔS° (Reaction) =  ∑S°(Product) - ∑S°(Reactant)

ΔS° = (256.2 + 210.6 ) - ( 248.5 + 240.5) = 466.8 - 489 = - 22.2 J/K.mol

The change in stander entropy of reaction is  - 22.2 J/K.mol. The negative sign indicates the that entropy of reaction is decreases when reactant converted into product.

learn about reaction

https://brainly.com/question/3664113

#SPJ4

Answer:

Same i guess hdjekfhkshfjfkr

The resultant volume of the carbon dioxide gas which is produced by the combustion of butane is 14.4L.

Moles of any gas will be calculated by using the ideal gas equation as:

PV = nRT, where according to qustion for butane gas

P = pressure = 1.20 atm

V = volume = 2.50L

n = moles = ?

R = universal gas constant = 0.082 L.atm / K.mol

T = temperature = 22 degree celsius = 295.15 K

On putting values we get

n = (1.20)(2.50) / (0.082)(295.15) = 0.124 moles

Given chemical equation is:

C₄H₁₀ + 13/2O₂ → 4CO₂ + 5H₂O

From the stoichiometry of the reaction, it is clear that,

1 mole of C₄H₁₀ = produces 4 moles of CO₂

0.124 mole of C₄H₁₀ = produces 4×0.124=0.496 moles of CO₂

Now we calculate the volume for the carbon dioxide gas at the given pressure and temperature as:

V = (0.496)(0.082)(295.15) / (1.20) = 14.4 L

Hence required volume of CO₂ is 14.4 L.

To know more about ideal gas equation, visit the below link:

https://brainly.com/question/24236411

#SPJ2

The graph shows the continuous growth of bacteria at constant rate.

Bacteria is defined as a creatures without a proper nucleus and only a few organelles that are prokaryotic unicellular organisms. The bacteria in our systems aid in the breakdown of the food we consume, assist in making nutrients available to us, and remove poisons.

The type of growth is a good model of epidemic because the growth of bacteria is continuous which increase the growth of epidemic as well.  The type of growth is a bad model because growth of causes harmful effect to the body.

Thus, the graph shows the continuous growth of bacteria at constant rate.

To learn more about bacteria, refer top the link below:

https://brainly.com/question/8008968

#SPJ1

Answer:

as the atom is so small n our eye cant see it.....

Explanation:

Answer:

False. Humans are the only reason the earth is polluted

hope this helps :)

Answer:

Dalton used creativity to modify Proust's experiment and interpret the results. Millikan used creativity to develop a way to measure the charge on an electron. Thomson used creativity to interpret the results of the cathode ray tube experiment.

Explanation:

Creativity enables scientists to devise new ways of solving old problems.

I do not know what your material contains, however, creativity is key in scientific investigation. The term "science" is coined from the Latin word "scientia" which means knowledge.

In science, we endeavor to create new knowledge through research and innovation. This requires that a scientist must think of new and efficient ways of solving old problems. This underscores the centrality of creativity in scientific investigation.

Learn more: https://brainly.com/question/12108425

Answer:

Volume is 0.0247L

Explanation:

This question involves the use of Boyle's law which states that the volume of a given mass of gas is inversely proportional to it's pressure provided that temperature remains constant.

Mathematically,

v = k/p

K = VP

P1V1 = P2V2 = P3V3 = .........=PnVn

V = volume

p = pressure

Data;

P1 =1.0atm

V1 = 1.73L

P2 = 70atm

V2 = ?

P1V1 = P2V2

V2 = P1V1 / P2

V2 = (1.0×1.73)/70

V2 = 0.0247L

The volume of the sample is 0.0247L

The molarity of the bleach solution is approximately 0.128 M NaOCl.

To calculate the molarity of a bleach solution, we need to determine the number of moles of sodium hypochlorite (NaOCl) present in the given mass of NaOCl.

Mass of NaOCl = 9.5 g

Volume of bleach solution = 1 liter

First, we need to convert the mass of NaOCl to moles using its molar mass. The molar mass of NaOCl is the sum of the atomic masses of sodium (Na), oxygen (O), and chlorine (Cl).

Molar mass of NaOCl = (22.99 g/mol) + (16.00 g/mol) + (35.45 g/mol) = 74.44 g/mol

Now, we can calculate the number of moles of NaOCl:

Number of moles = Mass / Molar mass

Number of moles = 9.5 g / 74.44 g/mol

Next, we need to calculate the molarity using the number of moles and the volume of the solution:

Molarity (M) = Number of moles / Volume (in liters)

Molarity = (9.5 g / 74.44 g/mol) / 1 L

Now, we can calculate the molarity:

Molarity = 0.1276 mol / L ≈ 0.128 M NaOCl

To know more about molarity  refer to-

https://brainly.com/question/31545539

#SPJ11

Answer:eighter a b or c

nah i am playing it is a

Explanation:

Answer:

A is correct i took the quiz

Explanation:

The molar ratio of iron (Fe) and oxygen gas (O2) is 4:3 as shown by the equilibrium equation:

\(4 Fe + 3 O_2---- > 2 Fe_2O_3.\)

We can use the provided amount and molar ratio of iron(III) oxide (Fe2O3) moles to calculate how many moles of oxygen gas are needed to react with iron metal.

Given: Moles of Fe2O3 = 4.89 mol

We can construct the following ratio using the molar ratio from the balanced equation:

4 mol Fe / 3 mol O2 = 4.89 mol Fe2O3 / x mol O2

Cross-multiplying and solving for x, we get:

4 mol Fe * x mol O2 = 3 mol O2 * 4.89 mol Fe2O3

4x = 12.33

x = 12.33 / 4

x ≈ 3.08 mol \(O_2\)

Therefore, approximately 3.08 moles of oxygen gas are required to react with iron metal to produce 4.89 moles of iron(III) oxide.

Learn more about Molar ratio, here:

https://brainly.com/question/30930200

#SPJ1

Answer:

First 20 Elements

Atomic Number Element Symbol

17 Chlorine Cl

18 Argon Ar

19 Potassium K

20 Calcium Ca

Answer: 0.938 moles of \(ZnCl_2\) will be produced.

Explanation:

To calculate the moles, we use the equation:

\(\text{Number of moles}=\frac{\text{Given mass}}{\text {Molar mass}}\)

moles of zinc:

\(\text{Number of moles}=\frac{61.0g}{65g/mol}=0.938moles\)

\(Zn+2HCl\rightarrow ZnCl_2+H_2\)

As HCl  is in excess , zinc is the limiting reagent and it limits the formation of product.

According to stoichiometry :

1 mole of Zn produce =  1 mole of \(ZnCl_2\)

Thus moles of  Zn produce = \(\frac{1}{1}\times 0.938=0.938\) moles of \(ZnCl_2\)

Thus 0.938 moles of \(ZnCl_2\) will be produced.

Answer:

Convection

Explanation:

Convection is steam and the condensation of vapor.

The true statements are II and III.

I. At equilibrium, the concentrations of reactants and products are equal. This statement is false because the concentrations of reactants and products may be different at equilibrium. What remains constant is the ratio of their concentrations, not the concentrations themselves.

II. At equilibrium, the concentrations of the reactants and products do not change over time. This statement is true because, at equilibrium, the rate of the forward reaction is equal to the rate of the reverse reaction, which leads to a constant concentration of reactants and products.

III. At equilibrium, the rates of the forward and reverse reactions are equal. This statement is true because, at equilibrium, the system has reached a state where both reactions occur at the same rate, maintaining a constant concentration of reactants and products.

IV. At equilibrium, the chemical reaction has stopped. This statement is false because, at equilibrium, the reaction is still occurring. However, the forward and reverse reactions are happening at the same rate, resulting in no net change in the concentrations of reactants and products.

To know more about equilibrium, visit:

https://brainly.com/question/30694482

#SPJ11

Answer:

A: Crushing a Rock

Explanation:

The rock is physicially being broken down and turned into either smaller pieces of rock or dust if you pound it hard enough.

Answer:

the answer is a) crushing a rock because even though you broke it, its still a rock just in smaller pieces. B is not the answer because its a chemical change. The shirt is losing colour and you can't reverse it.

The balanced symbol equation for the Haber process, which is the industrial method for producing ammonia, is N2 + 3H2 → 2NH3

A. The Haber process is the industrial method for producing ammonia, and the balanced equation for the reaction is:

N2 + 3H2 → 2NH3

The atom economy for a product is the percentage of the total mass of reactants that becomes the desired product. For ammonia, the atom economy can be calculated as follows:

Molar mass of NH3 = 14.01 + 3(1.01) = 17.04 g/mol

Atom economy of NH3 = (2 mol NH3 x 17.04 g/mol) / [(1 mol N2 x 28.02 g/mol) + (3 mol H2 x 2.02 g/mol)] x 100% = 34.0%

B. To calculate the theoretical yield of ammonia, we need to use the given mass of nitrogen and the stoichiometry of the balanced equation. The molar mass of nitrogen is 28.02 g/mol, so 27.3 g of nitrogen is equal to:

27.3 g / 28.02 g/mol = 0.974 mol N2

According to the balanced equation, 1 mole of N2 reacts with 3 moles of H2 to produce 2 moles of NH3. Therefore, the theoretical yield of ammonia is:

Theoretical yield of NH3 = (0.974 mol N2) x (2 mol NH3 / 1 mol N2) x (17.04 g/mol NH3) = 33.1 g NH3

C. The percentage yield of the reaction can be calculated by dividing the actual yield of ammonia by the theoretical yield, and then multiplying by 100%. The actual yield of ammonia is given as 29.9 g:

Percentage yield of NH3 = (29.9 g NH3 / 33.1 g NH3) x 100% = 90.4%

D. The percentage conversion of hydrogen can be calculated by dividing the mass of hydrogen used in the reaction by the mass of hydrogen that would have been used if all of it had been consumed in the reaction. The mass of hydrogen used is 10.4 g, and the mass of hydrogen that would have been used if all of it had been consumed in the reaction is:

1( mol H2 x 2.02 g/mol) x (0.974 mol N2 / 1 mol N2) = 1.98 g H2

Therefore, the percentage conversion of hydrogen is:

Percentage conversion of H2 = (10.4 g H2 / 1.98 g H2) x 100% = 525% (This result is not possible, as the percentage conversion cannot be greater than 100%. It is likely that there was an error in the calculation or in the data provided.)

For more question on balanced symbol equation

https://brainly.com/question/11904811

#SPJ11

Answer:

45.98 I believe if its wrong im sorry

Answer:

The answer actually isn't all that complicated. 120 grams is equivalent to 120 milliliters, and 120 milliliters is equal to 0.21 liters, since you divide 120 by 1000.

why helium is inactive

Ionic compounds are composed of positively and negatively charged ions which are held together by the ionic bonds. Among the given chemical compounds in the list, the ionic compounds are NaOH and POCI3. Hence, the correct options are Option D and Option G.

Let's discuss these compounds in detail.NaOH:NaOH is known as sodium hydroxide, which is a strong alkali base, and it has ionic bonding. It is commonly used in chemical laboratories and industries for the production of paper, soap, and detergents, among other things. Its chemical formula is NaOH, and it is a colorless, odorless liquid with a high density. NaOH is also called caustic soda.POCI3:POCI3 is known as phosphorus oxychloride, which is a colorless or light yellow liquid with a very pungent odor. It has an ionic bonding structure. It is utilized in the production of phosphate esters, plasticizers, pesticides, and various other chemicals in the chemical industry. Its chemical formula is POCI3, and it is also used in organic chemistry as a chlorinating reagent for the conversion of alcohols to alkyl chlorides or carboxylic acids to acyl chlorides. In conclusion, NaOH and POCI3 are the ionic compounds among the given list of chemical compounds.

For more information on Ionic compounds visit:

brainly.com/question/30420333

#SPJ11

Answer:

false i am pretty sure because dead flowers.

Exothermic reactions, release exceeding chemical energy from the reactants. Before its release, the energy is turned into another form, heat or light. C) The total chemical potential energy of the reactants is greater than the total chemical potential energy of the products.

An exothermic reaction is the chemical reaction that releases energy as heat or light when the reactants turn into products.

Reactant molecules have more energy than the product molecules, and hence, the remaining energy must leave the system. So part of the chemical energy from the reactants is released as another type of energy  (heat or light).

Usually, oxidation reactions are exothermic.

The correct option is C) The total chemical potential energy of the reactants is greater than the total chemical potential energy of the products.

You can learn more about exothermic reactions at

https://brainly.com/question/10373907

#SPJ1

The equilibrium for the hydration of alkenes strongly favors the reverse reaction due to thermodynamic factors.

When an alkene is hydrated, an alcohol is formed by adding water across the double bond. This reaction is exothermic and releases energy. As a result, the entropy of the system decreases since fewer molecules are present in the products than in the reactants.

In contrast, the reverse reaction is endothermic and requires energy to proceed. This results in an increase in the entropy of the system since more molecules are present in the products than in the reactants.

Therefore, the equilibrium for the hydration of alkenes strongly favors the reverse reaction due to the thermodynamic factors of energy and entropy.

You can learn more about reverse reaction at

https://brainly.com/question/14611993

#SPJ11

Answer:

A b/c aluminum

Explanation:

don't forget to follow rate like

Answer:

2.67g Ni

Explanation:

To convert from moles to mass, use molar mass as a conversion factor.

Nickel has a molar mass of 58.69g/mol.

0.0455mol (\(\frac{58.69g Ni}{1 mole Ni}\)) = 2.67g Ni

The freezing point of m aqueous calcium chloride is 16.76 °C.

The formula for calcium chloride is CaCl₂. The freezing point depression of a solution can be calculated using the formula:

ΔTf = Kf × molality

where ΔTf is the change in freezing point, Kf is the freezing point depression constant for the solvent (water in this case), and molality is the concentration of solute in moles per kilogram of solvent.

The freezing point depression constant for water is 1.86 °C/m. The molality of a solution can be calculated by dividing the moles of solute by the mass of solvent in kilograms.

Assuming that "m" refers to the concentration of calcium chloride in mol/kg of water, we can use the following calculation:

Therefore, to get "m" mol/kg of water, we need to dissolve m × 111 g of CaCl₂ in 1 kg of water. This means that the molality of the solution is m/(111 × 10⁻³) mol/kg.U sing the formula above, we get: ΔTf = 1.86 °C/m × [m/(111 × 10⁻³) mol/kg] = (16.76 × m) °C

Therefore, the freezing point of the solution would be lowered by 16.76 times the molality of the calcium chloride solution in degrees Celsius. For example, if the concentration of calcium chloride is 1 mol/kg of water (i.e. a 1 molal solution), the freezing point of the solution would be lowered by 16.76 °C.

Learn more about freezing point: https://brainly.com/question/31357864

#SPJ11