Three specific types of laboratory waste containers used for accumulating potentially hazardous wastes are as follows:________

The comparison between the class barometer data and the air pressure shown in the weather report serves as a means to evaluate the accuracy and effectiveness of the barometer's measurements.

The comparison between the data from the class barometer and the air pressure shown in the weather report revealed a correlation between the two measurements. The class barometer readings were likely taken at the same time as the weather report's air pressure measurement to ensure accurate comparison.

If the class barometer readings closely matched the air pressure indicated in the weather report, it would suggest that the barometer was functioning correctly and providing reliable measurements. This would indicate that the class barometer could be used as a reliable tool for monitoring air pressure changes.

However, if there were significant discrepancies between the class barometer readings and the air pressure reported in the weather report, it could indicate a calibration issue with the barometer or potential inaccuracies in its measurements. In such a case, it would be necessary to investigate the reasons behind the discrepancies and determine the reliability of the class barometer for future use. It helps to determine the barometer's reliability as a tool for monitoring air pressure changes in the local environment.

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Answer:

2 oz. just multiply 56.8 with 0.03527

Explanation:

The component of the supply chain decision-making framework that would be used to reach the performance level dictated by the supply chain strategy is the Supply Chain Structure.

The supply chain decision-making framework consists of various components that work together to achieve the goals and objectives set by the supply chain strategy. These components help in aligning the operational activities with the overall strategy of the supply chain. Among the options provided, the Supply Chain Structure plays a crucial role in reaching the performance level dictated by the supply chain strategy. The supply chain structure refers to the design and configuration of the supply chain network, including the number and location of facilities, distribution channels, transportation modes, and inventory positioning. It determines how the various entities in the supply chain, such as suppliers, manufacturers, distributors, and retailers, are organized and interconnected.

The supply chain structure has a direct impact on the performance of the supply chain. It influences factors such as responsiveness, agility, cost efficiency, and customer satisfaction. By designing an effective supply chain structure that aligns with the supply chain strategy, companies can optimize their operations, enhance collaboration with supply chain partners, and improve overall performance. For example, if the supply chain strategy emphasizes cost efficiency and quick response to customer demands, the supply chain structure should be designed to minimize transportation costs, reduce inventory levels, and enable fast and efficient order fulfillment. On the other hand, if the strategy focuses on product customization and market differentiation, the supply chain structure should support flexibility, scalability, and effective coordination between different entities in the supply chain.

In summary, while all components of the supply chain decision-making framework are important, the Supply Chain Structure is specifically responsible for determining how the supply chain is organized to meet the performance level dictated by the supply chain strategy. It ensures that the supply chain network and its operations are aligned with the strategic goals and objectives, leading to improved overall performance and competitiveness.

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The equilibrium will shift to the right when N2O4 is added, to the left when NO2 is removed, to the right when the volume is increased, to the left when the temperature is decreased, and to the left when the pressure is increased.

According to Le Chatelier's Principle, a change in any of the variables that affect an equilibrium system will cause the system to adjust in such a way as to counteract the change. In this case, adding N2O4 will increase the concentration of the reactants and shift the equilibrium to the right. Removing NO2 will decrease the concentration of the products and shift the equilibrium to the left. Increasing the volume will decrease the pressure and shift the equilibrium to the right, while decreasing the temperature will shift the equilibrium to the left. Increasing the pressure will shift the equilibrium to the left because the products occupy more volume than the reactants.

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Answer:

C

Explanation:

looking at a periodic table X is fluorine and Y is potassium

Fluorine is in group 7 and forms a 1- charge (which gains electrons) and potassium is in group 1 and forms a 1+ charge (which loses electrons)

Fluorine (X) has an electronic structure of 2,7 and needs to gain an electron from Potassium (Y) to have a full outer shell and potassium has an electronic structure of 2,8,8,1 so needs to lose an electron to have a full outer shell as well. This means that the electron that potassium (Y) has lost is given away to fluorine (X), so both elements become stable.

This is known as ionic bonding where metals (like potassium) lose electrons and non-metals (like fluorine) gain electrons to become more stable, forming ions

Any further clarification let me know

The balanced chemical equation for the acid-base reaction is:

2HCl + Ca(OH)2 → CaCl2 + 2H2O

A balanced chemical equation is a representation of a chemical reaction that shows the relative number of reactant and product molecules involved. It follows the law of conservation of mass, which states that matter cannot be created or destroyed in a chemical reaction. In a balanced equation, the number of atoms of each element on both sides of the equation is equal.

A balanced chemical equation includes chemical formulas of reactants on the left side of the arrow and the chemical formulas of products on the right side. Coefficients are used to balance the equation by adjusting the number of molecules or moles of each substance involved. These coefficients indicate the relative stoichiometric ratios between reactants and products.

According to the equation, for every 1 molecule of CaCl2 that forms, 2 water molecules are produced. Therefore, the correct answer is:

twice as many, 2x

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Answer:

is cool is cool goodcripopo

The beginning of a boiling point is the temperature at which a substance boils under standard conditions of 1 atm pressure and the end of a range of a boiling point is the temperature above which a substance can no longer be liquefied.

The range of a boiling point refers to the difference between the lowest and highest boiling point of a substance. The boiling point of a substance is defined as the temperature at which its vapour pressure is equal to atmospheric pressure and it changes from a liquid to a gas. The normal boiling point is usually used as a reference point to compare the boiling points of different substances.

On the other hand, the end of a boiling point range is defined as the “critical temperature” which is the temperature above which a substance can no longer be liquefied no matter how much pressure is applied. At this temperature, the vapour pressure of the substance is equal to its critical pressure, and it becomes a supercritical fluid.

It's essential to understand that the boiling point range is not a fixed value and can vary based on the pressure and temperature of the surrounding environment. In addition, some substances have a wide boiling point range, while others have a narrow range.

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Answer:

A. 6atm

Explanation:

Using pressure law equation:

P1/T1 = P2/T2

Where;

P1 = initial pressure (atm)

T1 = initial temperature (K)

P2 = final pressure (atm)

T2 = final temperature (K)

According to this question;

P1 = 3 atm

P2 = ?

T1 = 120K

T2 = 240K

Using P1/T1 = P2/T2

3/120 = P2/240

Cross multiply

240 × 3 = P2 × 120

720 = 120P2

P2 = 720/120

P2 = 6atm

The equilibrium expression for BCl3 would be:

Kc = ([PH3]^x * [BCl3]^y) / [PH3BCl3]

To calculate the equilibrium concentrations and the minimum mass of PH3BCl3 required to achieve equilibrium, we need the balanced chemical equation for the decomposition reaction and its corresponding equilibrium constant at 80 °C. Unfortunately, I don't have access to that specific information as it is beyond my knowledge cutoff in September 2021. However, I can provide you with a general approach to solving these types of equilibrium problems.

Equilibrium concentration of PH3:

Let's assume the balanced chemical equation for the decomposition of PH3BCl3 is:

PH3BCl3(g) ⇌ xPH3(g) + yBCl3(g)

The equilibrium expression using concentrations would be:

Kc = ([PH3]^x * [BCl3]^y) / [PH3BCl3]

To solve for the equilibrium concentration of PH3, you would need the values of x and y from the balanced equation and the equilibrium constant value (Kc) specific to the reaction at 80 °C.

Equilibrium concentration of BCl3:

Using the same balanced equation:

PH3BCl3(g) ⇌ xPH3(g) + yBCl3(g)

The equilibrium expression for BCl3 would be:

Kc = ([PH3]^x * [BCl3]^y) / [PH3BCl3]

Similar to the previous step, you would need the values of x and y from the balanced equation and the equilibrium constant value (Kc) specific to the reaction at 80 °C.

Minimum mass of PH3BCl3:

To determine the minimum mass of PH3BCl3 required to achieve equilibrium, you would need additional information such as the initial and equilibrium concentrations or the number of moles involved. With this information, you can calculate the moles of PH3BCl3 involved and then convert it to the minimum mass using the molar mass of PH3BCl3.

Please note that the specific values needed for the calculations depend on the actual reaction and its equilibrium constant at 80 °C, which I don't have access to. Therefore, I can't provide numerical calculations or units at this time.

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Answer:

Aluminum has a density of 2.70 g/cm3

1 1 dimethyl cyclohexane condensed structure is C₈H₁₆.

A condensed structural formula is a gadget for writing natural systems in a line of text. It shows all atoms, however, omits the vertical bonds and most or all the horizontal unmarried bonds. The condensed structural formulas of ethane, propane, and ethanol are. CH₃CH₃, CH₃CH₂CH₃, and CH₃CH₂OH. A molecular formula tells best the numbers of atoms of every detail in a molecule of the compound.

The molecular system lists the structure and kind of atoms but offers no indication of the bonds between them. The condensed system is CH₃(CH₂)4CH₃. although less commonly used, the condensed formula of hexane may also be written as CH₃CH₂CH₂CH₂CH₂CH₃. The chemical and molecular system for cyclohexane is C6H12. The condensed structural formula for a compound indicates the carbon atoms adjacent to their attached hydrogen atoms. For cyclohexane, the condensed structural chemical formula is CH₂CH₂CH₂CH₂CH₂CH₂.

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Final concentrations of acsch and tacrine in that reaction is 600x10⁻¹²mm.

The symptoms for mild to moderate Hypertension are managed by tacrine. Alzheimer's disease cannot be cured or prevented from worsening with tacrine. However, some Alzheimer's sufferers may benefit from tacrine since it helps them think more clearly.

The behavior, procedure, or event of responding. B: opposition or resistance to a power, influence, or movement, particularly: a propensity for an old-fashioned and typically obsolete social or political order or policy.

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Answer:

1: London Dispersion Forces. Iodine molecules are non polar, so they do not have dipole-dipole attractions or hydrogen bonding.

2. Hydrogen bonding. Water contains hydrogen atoms bonded to the highly electronegative oxygen atom, thus resulting in the hydrogen atoms being highly polarized. This causes hydrogen bonding.

3. Electrostatic attraction (ion-ion). Because NaI is an ionic compound, the \(Na^+\) ions within its lattice are attracted to the negatively charged \(I^-\) ions.

4. London Dispersion Forces. Because carbon and hydrogen do not differ greatly in electronegativity, \(C_1_6H_3_2\) is considered to be non polar and thus does not have hydrogen bonding or dipole-dipole attractions.

i) The concentration of G in mol/dm3 is also 0.003416 mol/dm³.

ii) Molar mass of YOH is 204.49 g/mol

iii) The concentration of G is 0.003416 mol/dm³, the molar mass of YOH is 204.49 g/mol, and the percentage by mass of Y in YOH is 91.63%.

To solve this problem, we'll use the given information and the equation for the reaction: HCl + YOH → YCl + H2O

i. Concentration of G in mol/dm³:

From the given information, we know that 28.00 cm³ of the acid (F) neutralizes 25.00 cm³ of the base (G). This means the stoichiometric ratio between HCl and YOH is 1:1. Therefore, the number of moles of HCl neutralized by 28.00 cm³ of F is:

n(HCl) = concentration of F × volume of F in dm³

       = 0.122 mol/dm³ × 28.00 cm³ / 1000 cm3/dm³

       = 0.003416 mol

Since the stoichiometric ratio is 1:1, the concentration of G in mol/dm³ is also 0.003416 mol/dm3.

ii. Molar mass of YOH:

To calculate the molar mass of YOH, we need to know the mass of YOH used in the reaction. From the given information, we know that 7.0 g of YOH is present in 1 dm3 of G. Therefore, the molar mass of YOH can be calculated as:

Molar mass of YOH = Mass of YOH / Number of moles of YOH

                 = 7.0 g / 0.003416 mol

                 = 204.49 g/mol (rounded to two decimal places)

iii. Percentage by mass of Y in YOH:

The molar mass of Y in YOH can be calculated by subtracting the molar mass of OH from the molar mass of YOH:

Molar mass of Y = Molar mass of YOH - Molar mass of OH

              = 204.49 g/mol - 17.01 g/mol

              = 187.48 g/mol

The percentage by mass of Y in YOH can be calculated as:

Percentage by mass of Y = (Molar mass of Y / Molar mass of YOH) × 100%

                       = (187.48 g/mol / 204.49 g/mol) × 100%

                       = 91.63% (rounded to two decimal places)

Therefore, the concentration of G is 0.003416 mol/dm3, the molar mass of YOH is 204.49 g/mol, and the percentage by mass of Y in YOH is 91.63%.

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Answer:

0.74 atm.

Explanation:

From the question given above, the following data were obtained:

Pressure of Ne (Pₙₑ) = 1.52 atm

Pressure of He (Pₕₑ) = 766 mmHg

Total pressure (Pₜ) = 3.27 atm

Pressure of Ar (Pₐᵣ) =?

Next, we shall convert the pressure of He from mmHg to atm. This can be obtained as follow:

760 mmHg = 1 atm

Therefore,

766 mmHg = 766 mmHg × 1 atm / 760 mmHg

766 mmHg = 1.01 atm

Finally, we shall determine the partial pressure of Ar. This can be obtained as follow:

Pressure of Ne (Pₙₑ) = 1.52 atm

Pressure of He (Pₕₑ) = 1.01 atm

Total pressure (Pₜ) = 3.27 atm

Pressure of Ar (Pₐᵣ) =?

Pₜ = Pₙₑ + Pₕₑ + Pₐᵣ

3.27 = 1.52 + 1.01 + Pₐᵣ

3.27 = 2.53 + Pₐᵣ

Collect like terms

3.27 – 2.53 = Pₐᵣ

Pₐᵣ = 0.74 atm

Thus the partial pressure of Ar is 0.74 atm.

Answer:

Quickly

Explanation:

From the mole ratio of the acid to base, the higher the volume of the acid used, the higher will the volume of the base required to neutralize the acid.

The color will the solution of potassium phthalate and phenolphthalein appear is Pink.

The mole ratio of the acid-base reaction between HCl and NaOH is determined from the equation of the reaction given below.

Equation of the reaction: HCl + NaOH ----> NaCl + H₂O

From the equation of the reaction, the mole ratio of the acid-base reaction between HCl and NaOH is 1 : 1.

Hence, if the concentration of the acid and the base are the same in the acid-base reaction between HCl and NaOH, the more the volume of acid used, the more will be the volume of base required to neutralize the acid.

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Answer:

false, The nucleus of atoms still move around like crazy, it's just the electrons move more.

Answer: a mercury thermometer is better to measure very small changes in temperature

Explanation:

i took the test and got it right

Answer:

the answer is C, a mercury thermometer is better to measure very small changes in temperature.

Explanation:

i just took the test and it was correct :)

The temperature that the soup must reach in the next four hours to be cooled properly is 41°F (5°C).

Cooking large batches of food can be a tricky endeavor. It is important to ensure that all food is cooled properly to prevent foodborne illness. In this case, a food worker has safely cooled a large pot of soup to 70°F (21°C) within two hours.

To be cooled properly, the soup must reach a temperature of 41°F (5°C) in the next four hours. This temperature is critical, as it is the safe limit for storing perishable food.

If the temperature is not reached, the soup will not be safe for consumption and must be discarded.

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If the reaction proceeds with a 100% yield, the mass of \(FeO\)produced will be 128.653 grams.

To write the balanced equation for the reaction between iron (Fe) and carbon (C) to form iron(II) oxide (\(FeO\)) and carbon dioxide (\(CO_2\)), we first need to determine the appropriate formulas for the compounds involved.

1. Iron: Fe

2. Carbon: C

3. Iron(II) oxide: \(FeO\)

4. Carbon dioxide: \(CO_2\)

The balanced equation for the reaction is as follows:

\(2Fe + C - > FeO + CO_2\)

Now, let's calculate the theoretical yield of \(FeO\) when starting with 200.0g of Fe and 40.0g of C, assuming a 100% yield.

First, we need to convert the given masses of Fe and C into moles using their respective molar masses.

Molar mass of Fe = 55.845 g/mol

Molar mass of C = 12.011 g/mol

Moles of Fe = mass of Fe / molar mass of Fe

            = 200.0g / 55.845 g/mol

            = 3.579 mol

Moles of C = mass of C / molar mass of C

           = 40.0g / 12.011 g/mol

           = 3.331 mol

From the balanced equation, we can see that the stoichiometric ratio between Fe and \(FeO\) is 2:1.

Therefore, the moles of \(FeO\) formed will be half the moles of Fe used.

Moles of \(FeO\) = (1/2) * moles of Fe

            = (1/2) * 3.579 mol

            = 1.790 mol

Now, we can calculate the mass of \(FeO\) using its molar mass.

Molar mass of \(FeO\) = 71.844 g/mol

Mass of \(FeO\) = moles of \(FeO\) * molar mass of \(FeO\)

           = 1.790 mol * 71.844 g/mol

           = 128.653 g

Therefore, if the reaction proceeds with a 100% yield, the mass of \(FeO\)produced will be 128.653 grams.

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The complete question is:

The initial processing of iron ore  (\(Fe_2O_3\)) is by reacting it with coke (essentially elemental carbon) to make \(FeO\) and carbon dioxide. Write a balanced equation. begin with 200.0g of Fe; and 40.0g of carbon, what is the mass of \(FeO\) produced when the  yield is 100%?

Answer:

transparent

Explanation:

Considering the chemical formula, 3.045 moles of nitrogen N are in 67.0 g of nitrous oxide, N₂O.

Chemical formulas use letters and numbers to represent chemical species. The letters are called chemical symbols and represent the elements present in the chemical species.

The numbers located to the right of each chemical symbol is a subscript that indicates the number of moles of the element present in that compound. If no subscript appears after a chemical symbol, this implies that there is only one atom of that element.

The molar mass of N₂O is 44 g/mole. If the molar mass is the amount of mass that a substance contains in one mole, this means that 1 mole of N₂O contains 44 grams of the compound.

On the other hand, 1 mole (or 44 grams, according to the definition of molar mass) of N₂O contain 2 moles of N. So, you can apply the following rule of three: if 44 grams of the compound contains 2 moles of N, 67 grams of the compound contains how many moles of N?

amount of moles of N= (67 grams× 2 moles of N)÷ 44 grams

amount of moles of N= 3.045 moles

Finally, there is 3.045 moles of N.

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Answer:

241

Explanation:

all the numbers are significant but since you only need three it's only the first three numbers

Answer:

The number on the top is called the atomic number and then the number with the decimal under the symbol is the atomic mass and the numbers on the top of the periodic table going horizontally is the group numbers and the numbers going vertically are the period numbers

Answer:

Atomic number, period(number of energy levels) , valence electrons

Explanation:

Explanation: i stuck at this Answer:Sometimes atoms share more than one pair of electrons, for example a double covalent bond can occur, as in the carbon dioxide molecule where carbon shares 2 pairs of electrons with each oxygen atom: O=C=O. (where = represents a double bond). Another kind of covalent bonding is called co-ordinate or dative covalent.

A polar covalent bond exists between the atoms in a CO2 molecule. A carbon atom is joined by four covalent bonds to two oxygen atoms, each of which has two covalent bonds.

A chemical bond is a long-lasting attraction between atoms, ions, or molecules that allows chemical compounds to form.

Ionic bonds are formed by the electrostatic force between oppositely charged ions, whereas covalent bonds are formed by the sharing of electrons.

One carbon atom and two oxygens combine to form the carbon dioxide molecule.

Carbon has only four outer shell electrons, whereas oxygen has six. Double covalent bonds form between the atoms, with two electrons from each atom shared, for a total of four bonding electrons.

A CO2 molecule contains polar covalent bonds between its atoms. Four covalent bonds connect a carbon atom to two oxygen atoms, each of which has two covalent bonds.

Thus, this way bond gets formed between carbon and oxygen atoms.

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Answer:

chemical energy

Explanation:

A battery stores energy in the form of chemical energy. Chemical energy is stored in the bond of atoms and molecules. These bonds break and convert to other forms of energy. In the given case, the chemical energy is converted to electric energy which powers the flashlight. Thus, flashlight receives energy input in the form of chemical energy.